diff --git a/apps/login/next-env-vars.d.ts b/apps/login/next-env-vars.d.ts
index be266fd5a04..35fcb109197 100644
--- a/apps/login/next-env-vars.d.ts
+++ b/apps/login/next-env-vars.d.ts
@@ -1,19 +1,13 @@
 declare namespace NodeJS {
   interface ProcessEnv {
-    /**
-     * Multitenancy: The system api url
-     */
-    AUDIENCE: string;
+    // Allow any environment variable that matches the pattern
+    [key: `${string}_AUDIENCE`]: string; // The system api url
+    [key: `${string}_SYSTEM_USER_ID`]: string; // The service user id
+    [key: `${string}_SYSTEM_USER_PRIVATE_KEY`]: string; // The service user private key
 
-    /**
-     * Multitenancy: The service user id
-     */
-    SYSTEM_USER_ID: string;
-
-    /**
-     * Multitenancy: The service user private key
-     */
-    SYSTEM_USER_PRIVATE_KEY: string;
+    AUDIENCE: string; // The fallback system api url
+    SYSTEM_USER_ID: string; // The fallback service user id
+    SYSTEM_USER_PRIVATE_KEY: string; // The fallback service user private key
 
     /**
      * Self hosting: The instance url
diff --git a/apps/login/src/app/(login)/accounts/page.tsx b/apps/login/src/app/(login)/accounts/page.tsx
index e9518dbfb5b..bc63d990c9c 100644
--- a/apps/login/src/app/(login)/accounts/page.tsx
+++ b/apps/login/src/app/(login)/accounts/page.tsx
@@ -13,12 +13,19 @@ import { getLocale, getTranslations } from "next-intl/server";
 import { headers } from "next/headers";
 import Link from "next/link";
 
-async function loadSessions({ serviceUrl }: { serviceUrl: string }) {
+async function loadSessions({
+  serviceUrl,
+  serviceRegion,
+}: {
+  serviceUrl: string;
+  serviceRegion: string;
+}) {
   const ids: (string | undefined)[] = await getAllSessionCookieIds();
 
   if (ids && ids.length) {
     const response = await listSessions({
       serviceUrl,
+      serviceRegion,
       ids: ids.filter((id) => !!id) as string[],
     });
     return response?.sessions ?? [];
@@ -39,20 +46,24 @@ export default async function Page(props: {
   const organization = searchParams?.organization;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   let defaultOrganization;
   if (!organization) {
-    const org: Organization | null = await getDefaultOrg({ serviceUrl });
+    const org: Organization | null = await getDefaultOrg({
+      serviceUrl,
+      serviceRegion,
+    });
     if (org) {
       defaultOrganization = org.id;
     }
   }
 
-  let sessions = await loadSessions({ serviceUrl });
+  let sessions = await loadSessions({ serviceUrl, serviceRegion });
 
   const branding = await getBrandingSettings({
     serviceUrl,
+    serviceRegion,
     organization: organization ?? defaultOrganization,
   });
 
diff --git a/apps/login/src/app/(login)/authenticator/set/page.tsx b/apps/login/src/app/(login)/authenticator/set/page.tsx
index 28bc0b70774..634b1168158 100644
--- a/apps/login/src/app/(login)/authenticator/set/page.tsx
+++ b/apps/login/src/app/(login)/authenticator/set/page.tsx
@@ -30,37 +30,41 @@ export default async function Page(props: {
   const { loginName, authRequestId, organization, sessionId } = searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const sessionWithData = sessionId
     ? await loadSessionById(serviceUrl, sessionId, organization)
     : await loadSessionByLoginname(serviceUrl, loginName, organization);
 
-  async function getAuthMethodsAndUser(host: string, session?: Session) {
+  async function getAuthMethodsAndUser(
+    serviceUrl: string,
+    serviceRegion: string,
+    session?: Session,
+  ) {
     const userId = session?.factors?.user?.id;
 
     if (!userId) {
       throw Error("Could not get user id from session");
     }
 
-    return listAuthenticationMethodTypes({ serviceUrl, userId }).then(
-      (methods) => {
-        return getUserByID({ serviceUrl, userId }).then((user) => {
-          const humanUser =
-            user.user?.type.case === "human"
-              ? user.user?.type.value
-              : undefined;
+    return listAuthenticationMethodTypes({
+      serviceUrl,
+      serviceRegion,
+      userId,
+    }).then((methods) => {
+      return getUserByID({ serviceUrl, serviceRegion, userId }).then((user) => {
+        const humanUser =
+          user.user?.type.case === "human" ? user.user?.type.value : undefined;
 
-          return {
-            factors: session?.factors,
-            authMethods: methods.authMethodTypes ?? [],
-            phoneVerified: humanUser?.phone?.isVerified ?? false,
-            emailVerified: humanUser?.email?.isVerified ?? false,
-            expirationDate: session?.expirationDate,
-          };
-        });
-      },
-    );
+        return {
+          factors: session?.factors,
+          authMethods: methods.authMethodTypes ?? [],
+          phoneVerified: humanUser?.phone?.isVerified ?? false,
+          emailVerified: humanUser?.email?.isVerified ?? false,
+          expirationDate: session?.expirationDate,
+        };
+      });
+    });
   }
 
   async function loadSessionByLoginname(
@@ -70,12 +74,13 @@ export default async function Page(props: {
   ) {
     return loadMostRecentSession({
       serviceUrl,
+      serviceRegion,
       sessionParams: {
         loginName,
         organization,
       },
     }).then((session) => {
-      return getAuthMethodsAndUser(serviceUrl, session);
+      return getAuthMethodsAndUser(serviceUrl, serviceRegion, session);
     });
   }
 
@@ -87,10 +92,15 @@ export default async function Page(props: {
     const recent = await getSessionCookieById({ sessionId, organization });
     return getSession({
       serviceUrl,
+      serviceRegion,
       sessionId: recent.id,
       sessionToken: recent.token,
     }).then((sessionResponse) => {
-      return getAuthMethodsAndUser(serviceUrl, sessionResponse.session);
+      return getAuthMethodsAndUser(
+        serviceUrl,
+        serviceRegion,
+        sessionResponse.session,
+      );
     });
   }
 
@@ -100,16 +110,19 @@ export default async function Page(props: {
 
   const branding = await getBrandingSettings({
     serviceUrl,
+    serviceRegion,
     organization: sessionWithData.factors?.user?.organizationId,
   });
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: sessionWithData.factors?.user?.organizationId,
   });
 
   const identityProviders = await getActiveIdentityProviders({
     serviceUrl,
+    serviceRegion,
     orgId: sessionWithData.factors?.user?.organizationId,
     linking_allowed: true,
   }).then((resp) => {
diff --git a/apps/login/src/app/(login)/idp/[provider]/failure/page.tsx b/apps/login/src/app/(login)/idp/[provider]/failure/page.tsx
index bb1272f332b..c1e4de1b269 100644
--- a/apps/login/src/app/(login)/idp/[provider]/failure/page.tsx
+++ b/apps/login/src/app/(login)/idp/[provider]/failure/page.tsx
@@ -25,9 +25,13 @@ export default async function Page(props: {
   const { organization } = searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   return (
     <DynamicTheme branding={branding}>
diff --git a/apps/login/src/app/(login)/idp/[provider]/success/page.tsx b/apps/login/src/app/(login)/idp/[provider]/success/page.tsx
index 0d26606a3e0..425e9f0caf8 100644
--- a/apps/login/src/app/(login)/idp/[provider]/success/page.tsx
+++ b/apps/login/src/app/(login)/idp/[provider]/success/page.tsx
@@ -40,9 +40,13 @@ export default async function Page(props: {
   const { provider } = params;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   if (!provider || !id || !token) {
     return loginFailed(branding, "IDP context missing");
@@ -50,6 +54,7 @@ export default async function Page(props: {
 
   const intent = await retrieveIDPIntent({
     serviceUrl,
+    serviceRegion,
     id,
     token,
   });
@@ -72,7 +77,11 @@ export default async function Page(props: {
     return loginFailed(branding, "IDP information missing");
   }
 
-  const idp = await getIDPByID({ serviceUrl, id: idpInformation.idpId });
+  const idp = await getIDPByID({
+    serviceUrl,
+    serviceRegion,
+    id: idpInformation.idpId,
+  });
   const options = idp?.config?.options;
 
   if (!idp) {
@@ -91,6 +100,7 @@ export default async function Page(props: {
     try {
       idpLink = await addIDPLink({
         serviceUrl,
+        serviceRegion,
         idp: {
           id: idpInformation.idpId,
           userId: idpInformation.userId,
@@ -121,20 +131,23 @@ export default async function Page(props: {
     const email = PROVIDER_MAPPING[providerType](idpInformation).email?.email;
 
     if (options.autoLinking === AutoLinkingOption.EMAIL && email) {
-      foundUser = await listUsers({ serviceUrl, email }).then((response) => {
-        return response.result ? response.result[0] : null;
-      });
+      foundUser = await listUsers({ serviceUrl, serviceRegion, email }).then(
+        (response) => {
+          return response.result ? response.result[0] : null;
+        },
+      );
     } else if (options.autoLinking === AutoLinkingOption.USERNAME) {
       foundUser = await listUsers(
         options.autoLinking === AutoLinkingOption.USERNAME
-          ? { serviceUrl, userName: idpInformation.userName }
-          : { serviceUrl, email },
+          ? { serviceUrl, serviceRegion, userName: idpInformation.userName }
+          : { serviceUrl, serviceRegion, email },
       ).then((response) => {
         return response.result ? response.result[0] : null;
       });
     } else {
       foundUser = await listUsers({
         serviceUrl,
+        serviceRegion,
         userName: idpInformation.userName,
         email,
       }).then((response) => {
@@ -147,6 +160,7 @@ export default async function Page(props: {
       try {
         idpLink = await addIDPLink({
           serviceUrl,
+          serviceRegion,
           idp: {
             id: idpInformation.idpId,
             userId: idpInformation.userId,
@@ -187,12 +201,17 @@ export default async function Page(props: {
       const suffix = matched?.[1] ?? "";
 
       // this just returns orgs where the suffix is set as primary domain
-      const orgs = await getOrgsByDomain({ serviceUrl, domain: suffix });
+      const orgs = await getOrgsByDomain({
+        serviceUrl,
+        serviceRegion,
+        domain: suffix,
+      });
       const orgToCheckForDiscovery =
         orgs.result && orgs.result.length === 1 ? orgs.result[0].id : undefined;
 
       const orgLoginSettings = await getLoginSettings({
         serviceUrl,
+        serviceRegion,
         organization: orgToCheckForDiscovery,
       });
       if (orgLoginSettings?.allowDomainDiscovery) {
@@ -211,7 +230,11 @@ export default async function Page(props: {
       });
     }
 
-    const newUser = await addHuman({ serviceUrl, request: userData });
+    const newUser = await addHuman({
+      serviceUrl,
+      serviceRegion,
+      request: userData,
+    });
 
     if (newUser) {
       return (
diff --git a/apps/login/src/app/(login)/idp/page.tsx b/apps/login/src/app/(login)/idp/page.tsx
index bda16051af9..80829557ecd 100644
--- a/apps/login/src/app/(login)/idp/page.tsx
+++ b/apps/login/src/app/(login)/idp/page.tsx
@@ -16,16 +16,21 @@ export default async function Page(props: {
   const organization = searchParams?.organization;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const identityProviders = await getActiveIdentityProviders({
     serviceUrl,
+    serviceRegion,
     orgId: organization,
   }).then((resp) => {
     return resp.identityProviders;
   });
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   return (
     <DynamicTheme branding={branding}>
diff --git a/apps/login/src/app/(login)/invite/page.tsx b/apps/login/src/app/(login)/invite/page.tsx
index cc06281eecb..f9c84058556 100644
--- a/apps/login/src/app/(login)/invite/page.tsx
+++ b/apps/login/src/app/(login)/invite/page.tsx
@@ -21,10 +21,10 @@ export default async function Page(props: {
   let { firstname, lastname, email, organization } = searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   if (!organization) {
-    const org = await getDefaultOrg({ serviceUrl });
+    const org = await getDefaultOrg({ serviceUrl, serviceRegion });
     if (!org) {
       throw new Error("No default organization found");
     }
@@ -32,14 +32,23 @@ export default async function Page(props: {
     organization = org.id;
   }
 
-  const loginSettings = await getLoginSettings({ serviceUrl, organization });
-
-  const passwordComplexitySettings = await getPasswordComplexitySettings({
+  const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization,
   });
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const passwordComplexitySettings = await getPasswordComplexitySettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
+
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   return (
     <DynamicTheme branding={branding}>
diff --git a/apps/login/src/app/(login)/invite/success/page.tsx b/apps/login/src/app/(login)/invite/success/page.tsx
index b8692d5c5b3..155849ebb92 100644
--- a/apps/login/src/app/(login)/invite/success/page.tsx
+++ b/apps/login/src/app/(login)/invite/success/page.tsx
@@ -19,10 +19,10 @@ export default async function Page(props: {
   let { userId, organization } = searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   if (!organization) {
-    const org = await getDefaultOrg({ serviceUrl });
+    const org = await getDefaultOrg({ serviceUrl, serviceRegion });
     if (!org) {
       throw new Error("No default organization found");
     }
@@ -30,12 +30,20 @@ export default async function Page(props: {
     organization = org.id;
   }
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   let user: User | undefined;
   let human: HumanUser | undefined;
   if (userId) {
-    const userResponse = await getUserByID({ serviceUrl, userId });
+    const userResponse = await getUserByID({
+      serviceUrl,
+      serviceRegion,
+      userId,
+    });
     if (userResponse) {
       user = userResponse.user;
       if (user?.type.case === "human") {
diff --git a/apps/login/src/app/(login)/loginname/page.tsx b/apps/login/src/app/(login)/loginname/page.tsx
index 6e1a97b2b6f..7f8cb928128 100644
--- a/apps/login/src/app/(login)/loginname/page.tsx
+++ b/apps/login/src/app/(login)/loginname/page.tsx
@@ -26,11 +26,14 @@ export default async function Page(props: {
   const submit: boolean = searchParams?.submit === "true";
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   let defaultOrganization;
   if (!organization) {
-    const org: Organization | null = await getDefaultOrg({ serviceUrl });
+    const org: Organization | null = await getDefaultOrg({
+      serviceUrl,
+      serviceRegion,
+    });
     if (org) {
       defaultOrganization = org.id;
     }
@@ -38,16 +41,19 @@ export default async function Page(props: {
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: organization ?? defaultOrganization,
   });
 
   const contextLoginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization,
   });
 
   const identityProviders = await getActiveIdentityProviders({
     serviceUrl,
+    serviceRegion,
     orgId: organization ?? defaultOrganization,
   }).then((resp) => {
     return resp.identityProviders;
@@ -55,6 +61,7 @@ export default async function Page(props: {
 
   const branding = await getBrandingSettings({
     serviceUrl,
+    serviceRegion,
     organization: organization ?? defaultOrganization,
   });
 
diff --git a/apps/login/src/app/(login)/mfa/page.tsx b/apps/login/src/app/(login)/mfa/page.tsx
index ce658129c33..53fc650788c 100644
--- a/apps/login/src/app/(login)/mfa/page.tsx
+++ b/apps/login/src/app/(login)/mfa/page.tsx
@@ -25,7 +25,7 @@ export default async function Page(props: {
   const { loginName, authRequestId, organization, sessionId } = searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const sessionFactors = sessionId
     ? await loadSessionById(serviceUrl, sessionId, organization)
@@ -38,6 +38,7 @@ export default async function Page(props: {
   ) {
     return loadMostRecentSession({
       serviceUrl,
+      serviceRegion,
       sessionParams: {
         loginName,
         organization,
@@ -46,6 +47,7 @@ export default async function Page(props: {
       if (session && session.factors?.user?.id) {
         return listAuthenticationMethodTypes({
           serviceUrl,
+          serviceRegion,
           userId: session.factors.user.id,
         }).then((methods) => {
           return {
@@ -65,12 +67,14 @@ export default async function Page(props: {
     const recent = await getSessionCookieById({ sessionId, organization });
     return getSession({
       serviceUrl,
+      serviceRegion,
       sessionId: recent.id,
       sessionToken: recent.token,
     }).then((response) => {
       if (response?.session && response.session.factors?.user?.id) {
         return listAuthenticationMethodTypes({
           serviceUrl,
+          serviceRegion,
           userId: response.session.factors.user.id,
         }).then((methods) => {
           return {
@@ -82,7 +86,11 @@ export default async function Page(props: {
     });
   }
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   return (
     <DynamicTheme branding={branding}>
diff --git a/apps/login/src/app/(login)/mfa/set/page.tsx b/apps/login/src/app/(login)/mfa/set/page.tsx
index a2a3c5d933f..64e9cd7605b 100644
--- a/apps/login/src/app/(login)/mfa/set/page.tsx
+++ b/apps/login/src/app/(login)/mfa/set/page.tsx
@@ -52,7 +52,7 @@ export default async function Page(props: {
   } = searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const sessionWithData = sessionId
     ? await loadSessionById(serviceUrl, sessionId, organization)
@@ -65,24 +65,24 @@ export default async function Page(props: {
       throw Error("Could not get user id from session");
     }
 
-    return listAuthenticationMethodTypes({ serviceUrl, userId }).then(
-      (methods) => {
-        return getUserByID({ serviceUrl, userId }).then((user) => {
-          const humanUser =
-            user.user?.type.case === "human"
-              ? user.user?.type.value
-              : undefined;
+    return listAuthenticationMethodTypes({
+      serviceUrl,
+      serviceRegion,
+      userId,
+    }).then((methods) => {
+      return getUserByID({ serviceUrl, serviceRegion, userId }).then((user) => {
+        const humanUser =
+          user.user?.type.case === "human" ? user.user?.type.value : undefined;
 
-          return {
-            factors: session?.factors,
-            authMethods: methods.authMethodTypes ?? [],
-            phoneVerified: humanUser?.phone?.isVerified ?? false,
-            emailVerified: humanUser?.email?.isVerified ?? false,
-            expirationDate: session?.expirationDate,
-          };
-        });
-      },
-    );
+        return {
+          factors: session?.factors,
+          authMethods: methods.authMethodTypes ?? [],
+          phoneVerified: humanUser?.phone?.isVerified ?? false,
+          emailVerified: humanUser?.email?.isVerified ?? false,
+          expirationDate: session?.expirationDate,
+        };
+      });
+    });
   }
 
   async function loadSessionByLoginname(
@@ -92,6 +92,7 @@ export default async function Page(props: {
   ) {
     return loadMostRecentSession({
       serviceUrl,
+      serviceRegion,
       sessionParams: {
         loginName,
         organization,
@@ -109,6 +110,7 @@ export default async function Page(props: {
     const recent = await getSessionCookieById({ sessionId, organization });
     return getSession({
       serviceUrl,
+      serviceRegion,
       sessionId: recent.id,
       sessionToken: recent.token,
     }).then((sessionResponse) => {
@@ -116,9 +118,14 @@ export default async function Page(props: {
     });
   }
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: sessionWithData.factors?.user?.organizationId,
   });
 
diff --git a/apps/login/src/app/(login)/otp/[method]/page.tsx b/apps/login/src/app/(login)/otp/[method]/page.tsx
index 4d29777f6be..3f3072dd07a 100644
--- a/apps/login/src/app/(login)/otp/[method]/page.tsx
+++ b/apps/login/src/app/(login)/otp/[method]/page.tsx
@@ -24,7 +24,7 @@ export default async function Page(props: {
   const tError = await getTranslations({ locale, namespace: "error" });
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host || typeof host !== "string") {
@@ -47,6 +47,7 @@ export default async function Page(props: {
     ? await loadSessionById(serviceUrl, sessionId, organization)
     : await loadMostRecentSession({
         serviceUrl,
+        serviceRegion,
         sessionParams: { loginName, organization },
       });
 
@@ -58,6 +59,7 @@ export default async function Page(props: {
     const recent = await getSessionCookieById({ sessionId, organization });
     return getSession({
       serviceUrl,
+      serviceRegion,
       sessionId: recent.id,
       sessionToken: recent.token,
     }).then((response) => {
@@ -70,11 +72,13 @@ export default async function Page(props: {
   // email links do not come with organization, thus we need to use the session's organization
   const branding = await getBrandingSettings({
     serviceUrl,
+    serviceRegion,
     organization: organization ?? session?.factors?.user?.organizationId,
   });
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: organization ?? session?.factors?.user?.organizationId,
   });
 
diff --git a/apps/login/src/app/(login)/otp/[method]/set/page.tsx b/apps/login/src/app/(login)/otp/[method]/set/page.tsx
index 1e80d847a26..3de97510fd3 100644
--- a/apps/login/src/app/(login)/otp/[method]/set/page.tsx
+++ b/apps/login/src/app/(login)/otp/[method]/set/page.tsx
@@ -34,13 +34,22 @@ export default async function Page(props: {
   const { method } = params;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
-  const loginSettings = await getLoginSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
+  const loginSettings = await getLoginSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   const session = await loadMostRecentSession({
     serviceUrl,
+    serviceRegion,
     sessionParams: {
       loginName,
       organization,
@@ -50,7 +59,11 @@ export default async function Page(props: {
   let totpResponse: RegisterTOTPResponse | undefined, error: Error | undefined;
   if (session && session.factors?.user?.id) {
     if (method === "time-based") {
-      await registerTOTP({ serviceUrl, userId: session.factors.user.id })
+      await registerTOTP({
+        serviceUrl,
+        serviceRegion,
+        userId: session.factors.user.id,
+      })
         .then((resp) => {
           if (resp) {
             totpResponse = resp;
@@ -61,18 +74,22 @@ export default async function Page(props: {
         });
     } else if (method === "sms") {
       // does not work
-      await addOTPSMS({ serviceUrl, userId: session.factors.user.id }).catch(
-        (error) => {
-          error = new Error("Could not add OTP via SMS");
-        },
-      );
+      await addOTPSMS({
+        serviceUrl,
+        serviceRegion,
+        userId: session.factors.user.id,
+      }).catch((error) => {
+        error = new Error("Could not add OTP via SMS");
+      });
     } else if (method === "email") {
       // works
-      await addOTPEmail({ serviceUrl, userId: session.factors.user.id }).catch(
-        (error) => {
-          error = new Error("Could not add OTP via Email");
-        },
-      );
+      await addOTPEmail({
+        serviceUrl,
+        serviceRegion,
+        userId: session.factors.user.id,
+      }).catch((error) => {
+        error = new Error("Could not add OTP via Email");
+      });
     } else {
       throw new Error("Invalid method");
     }
diff --git a/apps/login/src/app/(login)/passkey/page.tsx b/apps/login/src/app/(login)/passkey/page.tsx
index 2ec8b0d6270..312eacc5717 100644
--- a/apps/login/src/app/(login)/passkey/page.tsx
+++ b/apps/login/src/app/(login)/passkey/page.tsx
@@ -5,11 +5,7 @@ import { UserAvatar } from "@/components/user-avatar";
 import { getSessionCookieById } from "@/lib/cookies";
 import { getServiceUrlFromHeaders } from "@/lib/service";
 import { loadMostRecentSession } from "@/lib/session";
-import {
-  getBrandingSettings,
-  getLoginSettings,
-  getSession,
-} from "@/lib/zitadel";
+import { getBrandingSettings, getSession } from "@/lib/zitadel";
 import { getLocale, getTranslations } from "next-intl/server";
 import { headers } from "next/headers";
 
@@ -25,12 +21,13 @@ export default async function Page(props: {
     searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const sessionFactors = sessionId
     ? await loadSessionById(serviceUrl, sessionId, organization)
     : await loadMostRecentSession({
         serviceUrl,
+        serviceRegion,
         sessionParams: { loginName, organization },
       });
 
@@ -42,6 +39,7 @@ export default async function Page(props: {
     const recent = await getSessionCookieById({ sessionId, organization });
     return getSession({
       serviceUrl,
+      serviceRegion,
       sessionId: recent.id,
       sessionToken: recent.token,
     }).then((response) => {
@@ -51,9 +49,11 @@ export default async function Page(props: {
     });
   }
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
-
-  const loginSettings = await getLoginSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   return (
     <DynamicTheme branding={branding}>
diff --git a/apps/login/src/app/(login)/passkey/set/page.tsx b/apps/login/src/app/(login)/passkey/set/page.tsx
index 1035f4b55eb..e2f34ae830a 100644
--- a/apps/login/src/app/(login)/passkey/set/page.tsx
+++ b/apps/login/src/app/(login)/passkey/set/page.tsx
@@ -20,17 +20,22 @@ export default async function Page(props: {
     searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const session = await loadMostRecentSession({
     serviceUrl,
+    serviceRegion,
     sessionParams: {
       loginName,
       organization,
     },
   });
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   return (
     <DynamicTheme branding={branding}>
diff --git a/apps/login/src/app/(login)/password/change/page.tsx b/apps/login/src/app/(login)/password/change/page.tsx
index 4ea08083951..28f77a4b6d8 100644
--- a/apps/login/src/app/(login)/password/change/page.tsx
+++ b/apps/login/src/app/(login)/password/change/page.tsx
@@ -16,7 +16,7 @@ export default async function Page(props: {
   searchParams: Promise<Record<string | number | symbol, string | undefined>>;
 }) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const searchParams = await props.searchParams;
   const locale = getLocale();
@@ -28,21 +28,28 @@ export default async function Page(props: {
   // also allow no session to be found (ignoreUnkownUsername)
   const sessionFactors = await loadMostRecentSession({
     serviceUrl,
+    serviceRegion,
     sessionParams: {
       loginName,
       organization,
     },
   });
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   const passwordComplexity = await getPasswordComplexitySettings({
     serviceUrl,
+    serviceRegion,
     organization: sessionFactors?.factors?.user?.organizationId,
   });
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: sessionFactors?.factors?.user?.organizationId,
   });
 
diff --git a/apps/login/src/app/(login)/password/page.tsx b/apps/login/src/app/(login)/password/page.tsx
index e794f7bbbcc..b9b17568132 100644
--- a/apps/login/src/app/(login)/password/page.tsx
+++ b/apps/login/src/app/(login)/password/page.tsx
@@ -25,11 +25,14 @@ export default async function Page(props: {
   let { loginName, organization, authRequestId, alt } = searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   let defaultOrganization;
   if (!organization) {
-    const org: Organization | null = await getDefaultOrg({ serviceUrl });
+    const org: Organization | null = await getDefaultOrg({
+      serviceUrl,
+      serviceRegion,
+    });
 
     if (org) {
       defaultOrganization = org.id;
@@ -41,6 +44,7 @@ export default async function Page(props: {
   try {
     sessionFactors = await loadMostRecentSession({
       serviceUrl,
+      serviceRegion,
       sessionParams: {
         loginName,
         organization,
@@ -53,10 +57,12 @@ export default async function Page(props: {
 
   const branding = await getBrandingSettings({
     serviceUrl,
+    serviceRegion,
     organization: organization ?? defaultOrganization,
   });
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: organization ?? defaultOrganization,
   });
 
diff --git a/apps/login/src/app/(login)/password/set/page.tsx b/apps/login/src/app/(login)/password/set/page.tsx
index 2f29a66630a..a6537b3513f 100644
--- a/apps/login/src/app/(login)/password/set/page.tsx
+++ b/apps/login/src/app/(login)/password/set/page.tsx
@@ -27,13 +27,14 @@ export default async function Page(props: {
     searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   // also allow no session to be found (ignoreUnkownUsername)
   let session: Session | undefined;
   if (loginName) {
     session = await loadMostRecentSession({
       serviceUrl,
+      serviceRegion,
       sessionParams: {
         loginName,
         organization,
@@ -41,19 +42,32 @@ export default async function Page(props: {
     });
   }
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   const passwordComplexity = await getPasswordComplexitySettings({
     serviceUrl,
+    serviceRegion,
     organization: session?.factors?.user?.organizationId,
   });
 
-  const loginSettings = await getLoginSettings({ serviceUrl, organization });
+  const loginSettings = await getLoginSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   let user: User | undefined;
   let displayName: string | undefined;
   if (userId) {
-    const userResponse = await getUserByID({ serviceUrl, userId });
+    const userResponse = await getUserByID({
+      serviceUrl,
+      serviceRegion,
+      userId,
+    });
     user = userResponse.user;
 
     if (user?.type.case === "human") {
diff --git a/apps/login/src/app/(login)/register/page.tsx b/apps/login/src/app/(login)/register/page.tsx
index adb1f28310e..9fe2f3393c8 100644
--- a/apps/login/src/app/(login)/register/page.tsx
+++ b/apps/login/src/app/(login)/register/page.tsx
@@ -23,24 +23,40 @@ export default async function Page(props: {
     searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   if (!organization) {
-    const org: Organization | null = await getDefaultOrg({ serviceUrl });
+    const org: Organization | null = await getDefaultOrg({
+      serviceUrl,
+      serviceRegion,
+    });
     if (org) {
       organization = org.id;
     }
   }
 
-  const legal = await getLegalAndSupportSettings({ serviceUrl, organization });
+  const legal = await getLegalAndSupportSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
   const passwordComplexitySettings = await getPasswordComplexitySettings({
     serviceUrl,
+    serviceRegion,
     organization,
   });
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
-  const loginSettings = await getLoginSettings({ serviceUrl, organization });
+  const loginSettings = await getLoginSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   if (!loginSettings?.allowRegister) {
     return (
diff --git a/apps/login/src/app/(login)/register/password/page.tsx b/apps/login/src/app/(login)/register/password/page.tsx
index 2eac65536db..aeda4d56f68 100644
--- a/apps/login/src/app/(login)/register/password/page.tsx
+++ b/apps/login/src/app/(login)/register/password/page.tsx
@@ -23,10 +23,13 @@ export default async function Page(props: {
     searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   if (!organization) {
-    const org: Organization | null = await getDefaultOrg({ serviceUrl });
+    const org: Organization | null = await getDefaultOrg({
+      serviceUrl,
+      serviceRegion,
+    });
     if (org) {
       organization = org.id;
     }
@@ -34,15 +37,28 @@ export default async function Page(props: {
 
   const missingData = !firstname || !lastname || !email;
 
-  const legal = await getLegalAndSupportSettings({ serviceUrl, organization });
+  const legal = await getLegalAndSupportSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
   const passwordComplexitySettings = await getPasswordComplexitySettings({
     serviceUrl,
+    serviceRegion,
     organization,
   });
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
-  const loginSettings = await getLoginSettings({ serviceUrl, organization });
+  const loginSettings = await getLoginSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   return missingData ? (
     <DynamicTheme branding={branding}>
diff --git a/apps/login/src/app/(login)/signedin/page.tsx b/apps/login/src/app/(login)/signedin/page.tsx
index f387925500a..f6897134798 100644
--- a/apps/login/src/app/(login)/signedin/page.tsx
+++ b/apps/login/src/app/(login)/signedin/page.tsx
@@ -22,6 +22,7 @@ import { redirect } from "next/navigation";
 
 async function loadSession(
   serviceUrl: string,
+  serviceRegion: string,
   loginName: string,
   authRequestId?: string,
 ) {
@@ -30,6 +31,7 @@ async function loadSession(
   if (authRequestId) {
     return createCallback({
       serviceUrl,
+      serviceRegion,
       req: create(CreateCallbackRequestSchema, {
         authRequestId,
         callbackKind: {
@@ -46,6 +48,7 @@ async function loadSession(
   }
   return getSession({
     serviceUrl,
+    serviceRegion,
     sessionId: recent.id,
     sessionToken: recent.token,
   }).then((response) => {
@@ -61,20 +64,29 @@ export default async function Page(props: { searchParams: Promise<any> }) {
   const t = await getTranslations({ locale, namespace: "signedin" });
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const { loginName, authRequestId, organization } = searchParams;
   const sessionFactors = await loadSession(
     serviceUrl,
+    serviceRegion,
     loginName,
     authRequestId,
   );
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   let loginSettings;
   if (!authRequestId) {
-    loginSettings = await getLoginSettings({ serviceUrl, organization });
+    loginSettings = await getLoginSettings({
+      serviceUrl,
+      serviceRegion,
+      organization,
+    });
   }
 
   return (
diff --git a/apps/login/src/app/(login)/u2f/page.tsx b/apps/login/src/app/(login)/u2f/page.tsx
index c5db30a21c5..e0a21103a87 100644
--- a/apps/login/src/app/(login)/u2f/page.tsx
+++ b/apps/login/src/app/(login)/u2f/page.tsx
@@ -20,19 +20,24 @@ export default async function Page(props: {
   const { loginName, authRequestId, sessionId, organization } = searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host || typeof host !== "string") {
     throw new Error("No host found");
   }
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   const sessionFactors = sessionId
     ? await loadSessionById(serviceUrl, sessionId, organization)
     : await loadMostRecentSession({
         serviceUrl,
+        serviceRegion,
         sessionParams: { loginName, organization },
       });
 
@@ -44,6 +49,7 @@ export default async function Page(props: {
     const recent = await getSessionCookieById({ sessionId, organization });
     return getSession({
       serviceUrl,
+      serviceRegion,
       sessionId: recent.id,
       sessionToken: recent.token,
     }).then((response) => {
diff --git a/apps/login/src/app/(login)/u2f/set/page.tsx b/apps/login/src/app/(login)/u2f/set/page.tsx
index 79f5d3ab504..850f2652d0b 100644
--- a/apps/login/src/app/(login)/u2f/set/page.tsx
+++ b/apps/login/src/app/(login)/u2f/set/page.tsx
@@ -19,17 +19,22 @@ export default async function Page(props: {
   const { loginName, organization, authRequestId, checkAfter } = searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const sessionFactors = await loadMostRecentSession({
     serviceUrl,
+    serviceRegion,
     sessionParams: {
       loginName,
       organization,
     },
   });
 
-  const branding = await getBrandingSettings({ serviceUrl, organization });
+  const branding = await getBrandingSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   return (
     <DynamicTheme branding={branding}>
diff --git a/apps/login/src/app/(login)/verify/page.tsx b/apps/login/src/app/(login)/verify/page.tsx
index 833ed663df5..628d07f36fe 100644
--- a/apps/login/src/app/(login)/verify/page.tsx
+++ b/apps/login/src/app/(login)/verify/page.tsx
@@ -26,7 +26,7 @@ export default async function Page(props: { searchParams: Promise<any> }) {
     searchParams;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host || typeof host !== "string") {
@@ -35,6 +35,7 @@ export default async function Page(props: { searchParams: Promise<any> }) {
 
   const branding = await getBrandingSettings({
     serviceUrl,
+    serviceRegion,
     organization,
   });
 
@@ -48,6 +49,7 @@ export default async function Page(props: { searchParams: Promise<any> }) {
   if ("loginName" in searchParams) {
     sessionFactors = await loadMostRecentSession({
       serviceUrl,
+      serviceRegion,
       sessionParams: {
         loginName,
         organization,
@@ -57,6 +59,7 @@ export default async function Page(props: { searchParams: Promise<any> }) {
     if (doSend && sessionFactors?.factors?.user?.id) {
       await sendEmailCode({
         serviceUrl,
+        serviceRegion,
         userId: sessionFactors?.factors?.user?.id,
         urlTemplate:
           `${host.includes("localhost") ? "http://" : "https://"}${host}/verify?code={{.Code}}&userId={{.UserID}}&organization={{.OrgID}}&invite=true` +
@@ -70,6 +73,7 @@ export default async function Page(props: { searchParams: Promise<any> }) {
     if (doSend) {
       await sendEmailCode({
         serviceUrl,
+        serviceRegion,
         userId,
         urlTemplate:
           `${host.includes("localhost") ? "http://" : "https://"}${host}/verify?code={{.Code}}&userId={{.UserID}}&organization={{.OrgID}}&invite=true` +
@@ -80,7 +84,11 @@ export default async function Page(props: { searchParams: Promise<any> }) {
       });
     }
 
-    const userResponse = await getUserByID({ serviceUrl, userId });
+    const userResponse = await getUserByID({
+      serviceUrl,
+      serviceRegion,
+      userId,
+    });
     if (userResponse) {
       user = userResponse.user;
       if (user?.type.case === "human") {
diff --git a/apps/login/src/app/login/route.ts b/apps/login/src/app/login/route.ts
index f3663425701..2cea4b3b0b4 100644
--- a/apps/login/src/app/login/route.ts
+++ b/apps/login/src/app/login/route.ts
@@ -32,13 +32,16 @@ export const fetchCache = "default-no-store";
 
 async function loadSessions({
   serviceUrl,
+  serviceRegion,
   ids,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   ids: string[];
 }): Promise<Session[]> {
   const response = await listSessions({
     serviceUrl,
+    serviceRegion,
     ids: ids.filter((id: string | undefined) => !!id),
   });
 
@@ -55,6 +58,7 @@ const IDP_SCOPE_REGEX = /urn:zitadel:iam:org:idp:id:(.+)/;
  **/
 async function isSessionValid(
   serviceUrl: string,
+  serviceRegion: string,
   session: Session,
 ): Promise<boolean> {
   // session can't be checked without user
@@ -67,6 +71,7 @@ async function isSessionValid(
 
   const authMethodTypes = await listAuthenticationMethodTypes({
     serviceUrl,
+    serviceRegion,
     userId: session.factors.user.id,
   });
 
@@ -116,6 +121,7 @@ async function isSessionValid(
     // only check settings if no auth methods are available, as this would require a setup
     const loginSettings = await getLoginSettings({
       serviceUrl,
+      serviceRegion,
       organization: session.factors?.user?.organizationId,
     });
     if (loginSettings?.forceMfa || loginSettings?.forceMfaLocalOnly) {
@@ -159,6 +165,7 @@ async function isSessionValid(
 
 async function findValidSession(
   serviceUrl: string,
+  serviceRegion: string,
   sessions: Session[],
   authRequest: AuthRequest,
 ): Promise<Session | undefined> {
@@ -185,7 +192,7 @@ async function findValidSession(
 
   // return the first valid session according to settings
   for (const session of sessionsWithHint) {
-    if (await isSessionValid(serviceUrl, session)) {
+    if (await isSessionValid(serviceUrl, serviceRegion, session)) {
       return session;
     }
   }
@@ -199,7 +206,7 @@ export async function GET(request: NextRequest) {
   const sessionId = searchParams.get("sessionId");
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   // TODO: find a better way to handle _rsc (react server components) requests and block them to avoid conflicts when creating oidc callback
   const _rsc = searchParams.get("_rsc");
@@ -211,7 +218,7 @@ export async function GET(request: NextRequest) {
   const ids = sessionCookies.map((s) => s.id);
   let sessions: Session[] = [];
   if (ids && ids.length) {
-    sessions = await loadSessions({ serviceUrl, ids });
+    sessions = await loadSessions({ serviceUrl, serviceRegion, ids });
   }
 
   if (authRequestId && sessionId) {
@@ -224,7 +231,11 @@ export async function GET(request: NextRequest) {
     if (selectedSession && selectedSession.id) {
       console.log(`Found session ${selectedSession.id}`);
 
-      const isValid = await isSessionValid(serviceUrl, selectedSession);
+      const isValid = await isSessionValid(
+        serviceUrl,
+        serviceRegion,
+        selectedSession,
+      );
 
       console.log("Session is valid:", isValid);
 
@@ -259,6 +270,7 @@ export async function GET(request: NextRequest) {
         try {
           const { callbackUrl } = await createCallback({
             serviceUrl,
+            serviceRegion,
             req: create(CreateCallbackRequestSchema, {
               authRequestId,
               callbackKind: {
@@ -286,6 +298,7 @@ export async function GET(request: NextRequest) {
           ) {
             const loginSettings = await getLoginSettings({
               serviceUrl,
+              serviceRegion,
               organization: selectedSession.factors?.user?.organizationId,
             });
 
@@ -317,7 +330,11 @@ export async function GET(request: NextRequest) {
   }
 
   if (authRequestId) {
-    const { authRequest } = await getAuthRequest({ serviceUrl, authRequestId });
+    const { authRequest } = await getAuthRequest({
+      serviceUrl,
+      serviceRegion,
+      authRequestId,
+    });
 
     let organization = "";
     let suffix = "";
@@ -346,6 +363,7 @@ export async function GET(request: NextRequest) {
           if (orgDomain) {
             const orgs = await getOrgsByDomain({
               serviceUrl,
+              serviceRegion,
               domain: orgDomain,
             });
             if (orgs.result && orgs.result.length === 1) {
@@ -362,6 +380,7 @@ export async function GET(request: NextRequest) {
 
         const identityProviders = await getActiveIdentityProviders({
           serviceUrl,
+          serviceRegion,
           orgId: organization ? organization : undefined,
         }).then((resp) => {
           return resp.identityProviders;
@@ -387,6 +406,7 @@ export async function GET(request: NextRequest) {
 
           return startIdentityProviderFlow({
             serviceUrl,
+            serviceRegion,
             idpId,
             urls: {
               successUrl:
@@ -487,6 +507,7 @@ export async function GET(request: NextRequest) {
          **/
         const selectedSession = await findValidSession(
           serviceUrl,
+          serviceRegion,
           sessions,
           authRequest,
         );
@@ -516,6 +537,7 @@ export async function GET(request: NextRequest) {
 
         const { callbackUrl } = await createCallback({
           serviceUrl,
+          serviceRegion,
           req: create(CreateCallbackRequestSchema, {
             authRequestId,
             callbackKind: {
@@ -529,6 +551,7 @@ export async function GET(request: NextRequest) {
         // check for loginHint, userId hint and valid sessions
         let selectedSession = await findValidSession(
           serviceUrl,
+          serviceRegion,
           sessions,
           authRequest,
         );
@@ -553,6 +576,7 @@ export async function GET(request: NextRequest) {
         try {
           const { callbackUrl } = await createCallback({
             serviceUrl,
+            serviceRegion,
             req: create(CreateCallbackRequestSchema, {
               authRequestId,
               callbackKind: {
diff --git a/apps/login/src/lib/api.ts b/apps/login/src/lib/api.ts
index ba70a764f32..15e85fd2b68 100644
--- a/apps/login/src/lib/api.ts
+++ b/apps/login/src/lib/api.ts
@@ -1,17 +1,40 @@
 import { newSystemToken } from "@zitadel/client/node";
 
-export async function systemAPIToken() {
-  const audience = process.env.AUDIENCE;
-  const userID = process.env.SYSTEM_USER_ID;
-  const key = process.env.SYSTEM_USER_PRIVATE_KEY;
+export async function systemAPIToken({
+  serviceRegion,
+}: {
+  serviceRegion: string;
+}) {
+  const prefix = serviceRegion.toUpperCase();
+  const token = {
+    audience: process.env[prefix + "_AUDIENCE"],
+    userID: process.env[prefix + "_SYSTEM_USER_ID"],
+    token: Buffer.from(
+      process.env[prefix.toUpperCase() + "_SYSTEM_USER_PRIVATE_KEY"] as string,
+      "base64",
+    ).toString("utf-8"),
+  };
 
-  const decodedToken = Buffer.from(key, "base64").toString("utf-8");
+  if (!token.audience || !token.userID || !token.token) {
+    const fallbackToken = {
+      audience: process.env.AUDIENCE,
+      userID: process.env.SYSTEM_USER_ID,
+      token: Buffer.from(
+        process.env.SYSTEM_USER_PRIVATE_KEY,
+        "base64",
+      ).toString("utf-8"),
+    };
 
-  const token = newSystemToken({
-    audience: audience,
-    subject: userID,
-    key: decodedToken,
+    return newSystemToken({
+      audience: fallbackToken.audience,
+      subject: fallbackToken.userID,
+      key: fallbackToken.token,
+    });
+  }
+
+  return newSystemToken({
+    audience: token.audience,
+    subject: token.userID,
+    key: token.token,
   });
-
-  return token;
 }
diff --git a/apps/login/src/lib/self.ts b/apps/login/src/lib/self.ts
index 0553aef21bf..178583fb406 100644
--- a/apps/login/src/lib/self.ts
+++ b/apps/login/src/lib/self.ts
@@ -26,12 +26,13 @@ export async function setMyPassword({
   password: string;
 }) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const sessionCookie = await getSessionCookieById({ sessionId });
 
   const { session } = await getSession({
     serviceUrl,
+    serviceRegion,
     sessionId: sessionCookie.id,
     sessionToken: sessionCookie.token,
   });
diff --git a/apps/login/src/lib/server/cookie.ts b/apps/login/src/lib/server/cookie.ts
index 9f20c1a00db..587c7b4c76a 100644
--- a/apps/login/src/lib/server/cookie.ts
+++ b/apps/login/src/lib/server/cookie.ts
@@ -35,10 +35,11 @@ export async function createSessionAndUpdateCookie(
   lifetime?: Duration,
 ): Promise<Session> {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const createdSession = await createSessionFromChecks({
     serviceUrl,
+    serviceRegion,
     checks,
     challenges,
     lifetime,
@@ -47,6 +48,7 @@ export async function createSessionAndUpdateCookie(
   if (createdSession) {
     return getSession({
       serviceUrl,
+      serviceRegion,
       sessionId: createdSession.sessionId,
       sessionToken: createdSession.sessionToken,
     }).then((response) => {
@@ -97,10 +99,11 @@ export async function createSessionForIdpAndUpdateCookie(
   lifetime?: Duration,
 ): Promise<Session> {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const createdSession = await createSessionForUserIdAndIdpIntent({
     serviceUrl,
+    serviceRegion,
     userId,
     idpIntent,
     lifetime,
@@ -112,6 +115,7 @@ export async function createSessionForIdpAndUpdateCookie(
 
   const { session } = await getSession({
     serviceUrl,
+    serviceRegion,
     sessionId: createdSession.sessionId,
     sessionToken: createdSession.sessionToken,
   });
@@ -159,10 +163,11 @@ export async function setSessionAndUpdateCookie(
   lifetime?: Duration,
 ) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   return setSession({
     serviceUrl,
+    serviceRegion,
     sessionId: recentCookie.id,
     sessionToken: recentCookie.token,
     challenges,
@@ -189,6 +194,7 @@ export async function setSessionAndUpdateCookie(
 
       return getSession({
         serviceUrl,
+        serviceRegion,
         sessionId: sessionCookie.id,
         sessionToken: sessionCookie.token,
       }).then((response) => {
diff --git a/apps/login/src/lib/server/idp.ts b/apps/login/src/lib/server/idp.ts
index 3e597c50415..c12f518fd38 100644
--- a/apps/login/src/lib/server/idp.ts
+++ b/apps/login/src/lib/server/idp.ts
@@ -19,7 +19,7 @@ export type StartIDPFlowCommand = {
 
 export async function startIDPFlow(command: StartIDPFlowCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host) {
@@ -28,6 +28,7 @@ export async function startIDPFlow(command: StartIDPFlowCommand) {
 
   return startIdentityProviderFlow({
     serviceUrl,
+    serviceRegion,
     idpId: command.idpId,
     urls: {
       successUrl: `${host.includes("localhost") ? "http://" : "https://"}${host}${command.successUrl}`,
@@ -60,7 +61,7 @@ export async function createNewSessionFromIdpIntent(
   command: CreateNewSessionCommand,
 ) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host) {
@@ -73,6 +74,7 @@ export async function createNewSessionFromIdpIntent(
 
   const userResponse = await getUserByID({
     serviceUrl,
+    serviceRegion,
     userId: command.userId,
   });
 
@@ -82,6 +84,7 @@ export async function createNewSessionFromIdpIntent(
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: userResponse.user.details?.resourceOwner,
   });
 
diff --git a/apps/login/src/lib/server/invite.ts b/apps/login/src/lib/server/invite.ts
index 56986930f93..864c91540e4 100644
--- a/apps/login/src/lib/server/invite.ts
+++ b/apps/login/src/lib/server/invite.ts
@@ -22,7 +22,7 @@ export type RegisterUserResponse = {
 
 export async function inviteUser(command: InviteUserCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host) {
@@ -31,6 +31,7 @@ export async function inviteUser(command: InviteUserCommand) {
 
   const human = await addHumanUser({
     serviceUrl,
+    serviceRegion,
     email: command.email,
     firstName: command.firstName,
     lastName: command.lastName,
@@ -44,6 +45,7 @@ export async function inviteUser(command: InviteUserCommand) {
 
   const codeResponse = await createInviteCode({
     serviceUrl,
+    serviceRegion,
     urlTemplate: `${host.includes("localhost") ? "http://" : "https://"}${host}/verify?code={{.Code}}&userId={{.UserID}}&organization={{.OrgID}}&invite=true`,
     userId: human.userId,
   });
diff --git a/apps/login/src/lib/server/loginname.ts b/apps/login/src/lib/server/loginname.ts
index 13bf7f0ed06..18070ab76cd 100644
--- a/apps/login/src/lib/server/loginname.ts
+++ b/apps/login/src/lib/server/loginname.ts
@@ -34,7 +34,7 @@ const ORG_SUFFIX_REGEX = /(?<=@)(.+)/;
 
 export async function sendLoginname(command: SendLoginnameCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host) {
@@ -43,6 +43,7 @@ export async function sendLoginname(command: SendLoginnameCommand) {
 
   const loginSettingsByContext = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: command.organization,
   });
 
@@ -52,6 +53,7 @@ export async function sendLoginname(command: SendLoginnameCommand) {
 
   let searchUsersRequest: SearchUsersCommand = {
     serviceUrl,
+    serviceRegion,
     searchValue: command.loginName,
     organizationId: command.organization,
     loginSettings: loginSettingsByContext,
@@ -73,6 +75,7 @@ export async function sendLoginname(command: SendLoginnameCommand) {
   const redirectUserToSingleIDPIfAvailable = async () => {
     const identityProviders = await getActiveIdentityProviders({
       serviceUrl,
+      serviceRegion,
       orgId: command.organization,
     }).then((resp) => {
       return resp.identityProviders;
@@ -80,7 +83,7 @@ export async function sendLoginname(command: SendLoginnameCommand) {
 
     if (identityProviders.length === 1) {
       const _headers = await headers();
-      const serviceUrl = getServiceUrlFromHeaders(_headers);
+      const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
       const host = _headers.get("host");
 
       if (!host) {
@@ -103,6 +106,7 @@ export async function sendLoginname(command: SendLoginnameCommand) {
 
       const resp = await startIdentityProviderFlow({
         serviceUrl,
+        serviceRegion,
         idpId: identityProviders[0].id,
         urls: {
           successUrl:
@@ -121,15 +125,17 @@ export async function sendLoginname(command: SendLoginnameCommand) {
   };
 
   const redirectUserToIDP = async (userId: string) => {
-    const identityProviders = await listIDPLinks({ serviceUrl, userId }).then(
-      (resp) => {
-        return resp.result;
-      },
-    );
+    const identityProviders = await listIDPLinks({
+      serviceUrl,
+      serviceRegion,
+      userId,
+    }).then((resp) => {
+      return resp.result;
+    });
 
     if (identityProviders.length === 1) {
       const _headers = await headers();
-      const serviceUrl = getServiceUrlFromHeaders(_headers);
+      const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
       const host = _headers.get("host");
 
       if (!host) {
@@ -138,7 +144,11 @@ export async function sendLoginname(command: SendLoginnameCommand) {
 
       const identityProviderId = identityProviders[0].idpId;
 
-      const idp = await getIDPByID({ serviceUrl, id: identityProviderId });
+      const idp = await getIDPByID({
+        serviceUrl,
+        serviceRegion,
+        id: identityProviderId,
+      });
 
       const idpType = idp?.type;
 
@@ -161,6 +171,7 @@ export async function sendLoginname(command: SendLoginnameCommand) {
 
       const resp = await startIdentityProviderFlow({
         serviceUrl,
+        serviceRegion,
         idpId: idp.id,
         urls: {
           successUrl:
@@ -186,6 +197,7 @@ export async function sendLoginname(command: SendLoginnameCommand) {
 
     const userLoginSettings = await getLoginSettings({
       serviceUrl,
+      serviceRegion,
       organization: user.details?.resourceOwner,
     });
 
@@ -244,6 +256,7 @@ export async function sendLoginname(command: SendLoginnameCommand) {
 
     const methods = await listAuthenticationMethodTypes({
       serviceUrl,
+      serviceRegion,
       userId: session.factors?.user?.id,
     });
 
@@ -400,12 +413,17 @@ export async function sendLoginname(command: SendLoginnameCommand) {
       const suffix = matched?.[1] ?? "";
 
       // this just returns orgs where the suffix is set as primary domain
-      const orgs = await getOrgsByDomain({ serviceUrl, domain: suffix });
+      const orgs = await getOrgsByDomain({
+        serviceUrl,
+        serviceRegion,
+        domain: suffix,
+      });
       const orgToCheckForDiscovery =
         orgs.result && orgs.result.length === 1 ? orgs.result[0].id : undefined;
 
       const orgLoginSettings = await getLoginSettings({
         serviceUrl,
+        serviceRegion,
         organization: orgToCheckForDiscovery,
       });
       if (orgLoginSettings?.allowDomainDiscovery) {
diff --git a/apps/login/src/lib/server/otp.ts b/apps/login/src/lib/server/otp.ts
index 72c663e9fe2..6d56d0c5385 100644
--- a/apps/login/src/lib/server/otp.ts
+++ b/apps/login/src/lib/server/otp.ts
@@ -27,7 +27,7 @@ export type SetOTPCommand = {
 
 export async function setOTP(command: SetOTPCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const recentSession = command.sessionId
     ? await getSessionCookieById({ sessionId: command.sessionId }).catch(
@@ -64,6 +64,7 @@ export async function setOTP(command: SetOTPCommand) {
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: command.organization,
   });
 
diff --git a/apps/login/src/lib/server/passkeys.ts b/apps/login/src/lib/server/passkeys.ts
index 97255ead863..819f319bd47 100644
--- a/apps/login/src/lib/server/passkeys.ts
+++ b/apps/login/src/lib/server/passkeys.ts
@@ -43,7 +43,7 @@ export async function registerPasskeyLink(
   const { sessionId } = command;
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host) {
@@ -53,6 +53,7 @@ export async function registerPasskeyLink(
   const sessionCookie = await getSessionCookieById({ sessionId });
   const session = await getSession({
     serviceUrl,
+    serviceRegion,
     sessionId: sessionCookie.id,
     sessionToken: sessionCookie.token,
   });
@@ -73,6 +74,7 @@ export async function registerPasskeyLink(
   // use session token to add the passkey
   const registerLink = await createPasskeyRegistrationLink({
     serviceUrl,
+    serviceRegion,
     userId,
   });
 
@@ -82,6 +84,7 @@ export async function registerPasskeyLink(
 
   return registerPasskey({
     serviceUrl,
+    serviceRegion,
     userId,
     code: registerLink.code,
     domain: hostname,
@@ -90,7 +93,7 @@ export async function registerPasskeyLink(
 
 export async function verifyPasskeyRegistration(command: VerifyPasskeyCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   // if no name is provided, try to generate one from the user agent
   let passkeyName = command.passkeyName;
@@ -109,6 +112,7 @@ export async function verifyPasskeyRegistration(command: VerifyPasskeyCommand) {
   });
   const session = await getSession({
     serviceUrl,
+    serviceRegion,
     sessionId: sessionCookie.id,
     sessionToken: sessionCookie.token,
   });
@@ -120,6 +124,7 @@ export async function verifyPasskeyRegistration(command: VerifyPasskeyCommand) {
 
   return zitadelVerifyPasskeyRegistration({
     serviceUrl,
+    serviceRegion,
     request: create(VerifyPasskeyRegistrationRequestSchema, {
       passkeyId: command.passkeyId,
       publicKeyCredential: command.publicKeyCredential,
@@ -153,9 +158,13 @@ export async function sendPasskey(command: SendPasskeyCommand) {
   }
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
-  const loginSettings = await getLoginSettings({ serviceUrl, organization });
+  const loginSettings = await getLoginSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   const lifetime = checks?.webAuthN
     ? loginSettings?.multiFactorCheckLifetime // TODO different lifetime for webauthn u2f/passkey
@@ -177,6 +186,7 @@ export async function sendPasskey(command: SendPasskeyCommand) {
 
   const userResponse = await getUserByID({
     serviceUrl,
+    serviceRegion,
     userId: session?.factors?.user?.id,
   });
 
diff --git a/apps/login/src/lib/server/password.ts b/apps/login/src/lib/server/password.ts
index 74518efabee..15459fa734b 100644
--- a/apps/login/src/lib/server/password.ts
+++ b/apps/login/src/lib/server/password.ts
@@ -45,7 +45,7 @@ type ResetPasswordCommand = {
 
 export async function resetPassword(command: ResetPasswordCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host || typeof host !== "string") {
@@ -54,6 +54,7 @@ export async function resetPassword(command: ResetPasswordCommand) {
 
   const users = await listUsers({
     serviceUrl,
+    serviceRegion,
     loginName: command.loginName,
     organizationId: command.organization,
   });
@@ -69,6 +70,7 @@ export async function resetPassword(command: ResetPasswordCommand) {
 
   return passwordReset({
     serviceUrl,
+    serviceRegion,
     userId,
     urlTemplate:
       `${host.includes("localhost") ? "http://" : "https://"}${host}/password/set?code={{.Code}}&userId={{.UserID}}&organization={{.OrgID}}` +
@@ -85,7 +87,7 @@ export type UpdateSessionCommand = {
 
 export async function sendPassword(command: UpdateSessionCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   let sessionCookie = await getSessionCookieByLoginName({
     loginName: command.loginName,
@@ -101,6 +103,7 @@ export async function sendPassword(command: UpdateSessionCommand) {
   if (!sessionCookie) {
     const users = await listUsers({
       serviceUrl,
+      serviceRegion,
       loginName: command.loginName,
       organizationId: command.organization,
     });
@@ -115,6 +118,7 @@ export async function sendPassword(command: UpdateSessionCommand) {
 
       loginSettings = await getLoginSettings({
         serviceUrl,
+        serviceRegion,
         organization: command.organization,
       });
 
@@ -143,6 +147,7 @@ export async function sendPassword(command: UpdateSessionCommand) {
 
     const userResponse = await getUserByID({
       serviceUrl,
+      serviceRegion,
       userId: session?.factors?.user?.id,
     });
 
@@ -156,6 +161,7 @@ export async function sendPassword(command: UpdateSessionCommand) {
   if (!loginSettings) {
     loginSettings = await getLoginSettings({
       serviceUrl,
+      serviceRegion,
       organization:
         command.organization ?? session.factors?.user?.organizationId,
     });
@@ -201,6 +207,7 @@ export async function sendPassword(command: UpdateSessionCommand) {
   if (command.checks && command.checks.password && session.factors?.user?.id) {
     const response = await listAuthenticationMethodTypes({
       serviceUrl,
+      serviceRegion,
       userId: session.factors.user.id,
     });
     if (response.authMethodTypes && response.authMethodTypes.length) {
@@ -255,10 +262,14 @@ export async function changePassword(command: {
   password: string;
 }) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   // check for init state
-  const { user } = await getUserByID({ serviceUrl, userId: command.userId });
+  const { user } = await getUserByID({
+    serviceUrl,
+    serviceRegion,
+    userId: command.userId,
+  });
 
   if (!user || user.userId !== command.userId) {
     return { error: "Could not send Password Reset Link" };
@@ -267,6 +278,7 @@ export async function changePassword(command: {
 
   return setUserPassword({
     serviceUrl,
+    serviceRegion,
     userId,
     password: command.password,
     user,
@@ -284,12 +296,13 @@ export async function checkSessionAndSetPassword({
   password,
 }: CheckSessionAndSetPasswordCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const sessionCookie = await getSessionCookieById({ sessionId });
 
   const { session } = await getSession({
     serviceUrl,
+    serviceRegion,
     sessionId: sessionCookie.id,
     sessionToken: sessionCookie.token,
   });
@@ -308,6 +321,7 @@ export async function checkSessionAndSetPassword({
   // check if the user has no password set in order to set a password
   const authmethods = await listAuthenticationMethodTypes({
     serviceUrl,
+    serviceRegion,
     userId: session.factors.user.id,
   });
 
@@ -328,6 +342,7 @@ export async function checkSessionAndSetPassword({
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: session.factors.user.organizationId,
   });
 
@@ -337,22 +352,24 @@ export async function checkSessionAndSetPassword({
 
   // if the user has no MFA but MFA is enforced, we can set a password otherwise we use the token of the user
   if (forceMfa && hasNoMFAMethods) {
-    return setPassword({ serviceUrl, payload }).catch((error) => {
-      // throw error if failed precondition (ex. User is not yet initialized)
-      if (error.code === 9 && error.message) {
-        return { error: "Failed precondition" };
-      } else {
-        throw error;
-      }
-    });
+    return setPassword({ serviceUrl, serviceRegion, payload }).catch(
+      (error) => {
+        // throw error if failed precondition (ex. User is not yet initialized)
+        if (error.code === 9 && error.message) {
+          return { error: "Failed precondition" };
+        } else {
+          throw error;
+        }
+      },
+    );
   } else {
-    const transport = async (host: string, token: string) => {
+    const transport = async (serviceUrl: string, token: string) => {
       return createServerTransport(token, {
         baseUrl: serviceUrl,
       });
     };
 
-    const myUserService = async (host: string, sessionToken: string) => {
+    const myUserService = async (serviceUrl: string, sessionToken: string) => {
       const transportPromise = await transport(serviceUrl, sessionToken);
       return createUserServiceClient(transportPromise);
     };
diff --git a/apps/login/src/lib/server/register.ts b/apps/login/src/lib/server/register.ts
index 67021f21f65..2a23af3073b 100644
--- a/apps/login/src/lib/server/register.ts
+++ b/apps/login/src/lib/server/register.ts
@@ -29,7 +29,7 @@ export type RegisterUserResponse = {
 };
 export async function registerUser(command: RegisterUserCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host || typeof host !== "string") {
@@ -38,6 +38,7 @@ export async function registerUser(command: RegisterUserCommand) {
 
   const addResponse = await addHumanUser({
     serviceUrl,
+    serviceRegion,
     email: command.email,
     firstName: command.firstName,
     lastName: command.lastName,
@@ -51,6 +52,7 @@ export async function registerUser(command: RegisterUserCommand) {
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: command.organization,
   });
 
@@ -92,6 +94,7 @@ export async function registerUser(command: RegisterUserCommand) {
   } else {
     const userResponse = await getUserByID({
       serviceUrl,
+      serviceRegion,
       userId: session?.factors?.user?.id,
     });
 
diff --git a/apps/login/src/lib/server/session.ts b/apps/login/src/lib/server/session.ts
index db165dfabd1..7f71ec8f14d 100644
--- a/apps/login/src/lib/server/session.ts
+++ b/apps/login/src/lib/server/session.ts
@@ -25,10 +25,11 @@ export async function continueWithSession({
   ...session
 }: Session & { authRequestId?: string }) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: session.factors?.user?.organizationId,
   });
 
@@ -88,7 +89,7 @@ export async function updateSession(options: UpdateSessionCommand) {
   }
 
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host) {
@@ -106,7 +107,11 @@ export async function updateSession(options: UpdateSessionCommand) {
     challenges.webAuthN.domain = hostname;
   }
 
-  const loginSettings = await getLoginSettings({ serviceUrl, organization });
+  const loginSettings = await getLoginSettings({
+    serviceUrl,
+    serviceRegion,
+    organization,
+  });
 
   const lifetime = checks?.webAuthN
     ? loginSettings?.multiFactorCheckLifetime // TODO different lifetime for webauthn u2f/passkey
@@ -131,6 +136,7 @@ export async function updateSession(options: UpdateSessionCommand) {
   if (checks && checks.password && session.factors?.user?.id) {
     const response = await listAuthenticationMethodTypes({
       serviceUrl,
+      serviceRegion,
       userId: session.factors.user.id,
     });
     if (response.authMethodTypes && response.authMethodTypes.length) {
@@ -152,7 +158,7 @@ type ClearSessionOptions = {
 
 export async function clearSession(options: ClearSessionOptions) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const { sessionId } = options;
 
@@ -160,6 +166,7 @@ export async function clearSession(options: ClearSessionOptions) {
 
   const deletedSession = await deleteSession({
     serviceUrl,
+    serviceRegion,
     sessionId: session.id,
     sessionToken: session.token,
   });
@@ -175,12 +182,13 @@ type CleanupSessionCommand = {
 
 export async function cleanupSession({ sessionId }: CleanupSessionCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const sessionCookie = await getSessionCookieById({ sessionId });
 
   const deleteResponse = await deleteSession({
     serviceUrl,
+    serviceRegion,
     sessionId: sessionCookie.id,
     sessionToken: sessionCookie.token,
   });
diff --git a/apps/login/src/lib/server/u2f.ts b/apps/login/src/lib/server/u2f.ts
index 5eaabce5326..60f1c12b66a 100644
--- a/apps/login/src/lib/server/u2f.ts
+++ b/apps/login/src/lib/server/u2f.ts
@@ -21,7 +21,7 @@ type VerifyU2FCommand = {
 
 export async function addU2F(command: RegisterU2FCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host || typeof host !== "string") {
@@ -38,6 +38,7 @@ export async function addU2F(command: RegisterU2FCommand) {
 
   const session = await getSession({
     serviceUrl,
+    serviceRegion,
     sessionId: sessionCookie.id,
     sessionToken: sessionCookie.token,
   });
@@ -54,12 +55,12 @@ export async function addU2F(command: RegisterU2FCommand) {
     return { error: "Could not get session" };
   }
 
-  return registerU2F({ serviceUrl, userId, domain: hostname });
+  return registerU2F({ serviceUrl, serviceRegion, userId, domain: hostname });
 }
 
 export async function verifyU2F(command: VerifyU2FCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host || typeof host !== "string") {
@@ -82,6 +83,7 @@ export async function verifyU2F(command: VerifyU2FCommand) {
 
   const session = await getSession({
     serviceUrl,
+    serviceRegion,
     sessionId: sessionCookie.id,
     sessionToken: sessionCookie.token,
   });
@@ -99,5 +101,5 @@ export async function verifyU2F(command: VerifyU2FCommand) {
     userId,
   });
 
-  return verifyU2FRegistration({ serviceUrl, request });
+  return verifyU2FRegistration({ serviceUrl, serviceRegion, request });
 }
diff --git a/apps/login/src/lib/server/verify.ts b/apps/login/src/lib/server/verify.ts
index 6c07197b875..2ab94a92526 100644
--- a/apps/login/src/lib/server/verify.ts
+++ b/apps/login/src/lib/server/verify.ts
@@ -30,10 +30,11 @@ export async function verifyTOTP(
   organization?: string,
 ) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   return loadMostRecentSession({
     serviceUrl,
+    serviceRegion,
     sessionParams: {
       loginName,
       organization,
@@ -42,6 +43,7 @@ export async function verifyTOTP(
     if (session?.factors?.user?.id) {
       return verifyTOTPRegistration({
         serviceUrl,
+        serviceRegion,
         code,
         userId: session.factors.user.id,
       });
@@ -62,11 +64,12 @@ type VerifyUserByEmailCommand = {
 
 export async function sendVerification(command: VerifyUserByEmailCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const verifyResponse = command.isInvite
     ? await verifyInviteCode({
         serviceUrl,
+        serviceRegion,
         userId: command.userId,
         verificationCode: command.code,
       }).catch(() => {
@@ -74,6 +77,7 @@ export async function sendVerification(command: VerifyUserByEmailCommand) {
       })
     : await verifyEmail({
         serviceUrl,
+        serviceRegion,
         userId: command.userId,
         verificationCode: command.code,
       }).catch(() => {
@@ -105,6 +109,7 @@ export async function sendVerification(command: VerifyUserByEmailCommand) {
 
     session = await getSession({
       serviceUrl,
+      serviceRegion,
       sessionId: sessionCookie.id,
       sessionToken: sessionCookie.token,
     }).then((response) => {
@@ -119,6 +124,7 @@ export async function sendVerification(command: VerifyUserByEmailCommand) {
 
     const userResponse = await getUserByID({
       serviceUrl,
+      serviceRegion,
       userId: session?.factors?.user?.id,
     });
 
@@ -130,6 +136,7 @@ export async function sendVerification(command: VerifyUserByEmailCommand) {
   } else {
     const userResponse = await getUserByID({
       serviceUrl,
+      serviceRegion,
       userId: command.userId,
     });
 
@@ -169,11 +176,13 @@ export async function sendVerification(command: VerifyUserByEmailCommand) {
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: user.details?.resourceOwner,
   });
 
   const authMethodResponse = await listAuthenticationMethodTypes({
     serviceUrl,
+    serviceRegion,
     userId: user.userId,
   });
 
@@ -244,7 +253,7 @@ type resendVerifyEmailCommand = {
 
 export async function resendVerification(command: resendVerifyEmailCommand) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
   const host = _headers.get("host");
 
   if (!host) {
@@ -252,10 +261,11 @@ export async function resendVerification(command: resendVerifyEmailCommand) {
   }
 
   return command.isInvite
-    ? resendInviteCode({ serviceUrl, userId: command.userId })
+    ? resendInviteCode({ serviceUrl, serviceRegion, userId: command.userId })
     : resendEmailCode({
         userId: command.userId,
         serviceUrl,
+        serviceRegion,
         urlTemplate:
           `${host.includes("localhost") ? "http://" : "https://"}${host}/password/set?code={{.Code}}&userId={{.UserID}}&organization={{.OrgID}}` +
           (command.authRequestId
@@ -266,14 +276,16 @@ export async function resendVerification(command: resendVerifyEmailCommand) {
 
 type sendEmailCommand = {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
   urlTemplate: string;
 };
 
 export async function sendEmailCode(command: sendEmailCommand) {
   return zitadelSendEmailCode({
-    userId: command.userId,
     serviceUrl: command.serviceUrl,
+    serviceRegion: command.serviceRegion,
+    userId: command.userId,
     urlTemplate: command.urlTemplate,
   });
 }
@@ -290,7 +302,7 @@ export async function sendVerificationRedirectWithoutCheck(
   command: SendVerificationRedirectWithoutCheckCommand,
 ) {
   const _headers = await headers();
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   if (!("loginName" in command || "userId" in command)) {
     return { error: "No userId, nor loginname provided" };
@@ -313,6 +325,7 @@ export async function sendVerificationRedirectWithoutCheck(
 
     session = await getSession({
       serviceUrl,
+      serviceRegion,
       sessionId: sessionCookie.id,
       sessionToken: sessionCookie.token,
     }).then((response) => {
@@ -327,6 +340,7 @@ export async function sendVerificationRedirectWithoutCheck(
 
     const userResponse = await getUserByID({
       serviceUrl,
+      serviceRegion,
       userId: session?.factors?.user?.id,
     });
 
@@ -338,6 +352,7 @@ export async function sendVerificationRedirectWithoutCheck(
   } else if ("userId" in command) {
     const userResponse = await getUserByID({
       serviceUrl,
+      serviceRegion,
       userId: command.userId,
     });
 
@@ -377,6 +392,7 @@ export async function sendVerificationRedirectWithoutCheck(
 
   const authMethodResponse = await listAuthenticationMethodTypes({
     serviceUrl,
+    serviceRegion,
     userId: user.userId,
   });
 
@@ -402,6 +418,7 @@ export async function sendVerificationRedirectWithoutCheck(
 
   const loginSettings = await getLoginSettings({
     serviceUrl,
+    serviceRegion,
     organization: user.details?.resourceOwner,
   });
 
diff --git a/apps/login/src/lib/service.ts b/apps/login/src/lib/service.ts
index f6c70c66d30..e543f35467f 100644
--- a/apps/login/src/lib/service.ts
+++ b/apps/login/src/lib/service.ts
@@ -20,16 +20,17 @@ type ServiceClass =
 export async function createServiceForHost<T extends ServiceClass>(
   service: T,
   serviceUrl: string,
+  serviceRegion: string,
 ) {
   let token;
 
   // if we are running in a multitenancy context, use the system user token
   if (
-    process.env.AUDIENCE &&
-    process.env.SYSTEM_USER_ID &&
-    process.env.SYSTEM_USER_PRIVATE_KEY
+    process.env[serviceRegion + "_AUDIENCE"] &&
+    process.env[serviceRegion + "_SYSTEM_USER_ID"] &&
+    process.env[serviceRegion + "_SYSTEM_USER_PRIVATE_KEY"]
   ) {
-    token = await systemAPIToken();
+    token = await systemAPIToken({ serviceRegion });
   } else if (process.env.ZITADEL_SERVICE_USER_TOKEN) {
     token = process.env.ZITADEL_SERVICE_USER_TOKEN;
   }
@@ -49,7 +50,10 @@ export async function createServiceForHost<T extends ServiceClass>(
   return createClientFor<T>(service)(transport);
 }
 
-export function getServiceUrlFromHeaders(headers: ReadonlyHeaders): string {
+export function getServiceUrlFromHeaders(headers: ReadonlyHeaders): {
+  serviceUrl: string;
+  serviceRegion: string;
+} {
   let instanceUrl: string = process.env.ZITADEL_API_URL;
 
   const forwardedHost = headers.get("x-zitadel-forward-host");
@@ -70,5 +74,8 @@ export function getServiceUrlFromHeaders(headers: ReadonlyHeaders): string {
     }
   }
 
-  return instanceUrl;
+  return {
+    serviceUrl: instanceUrl,
+    serviceRegion: headers.get("x-zitadel-region") || "",
+  };
 }
diff --git a/apps/login/src/lib/session.ts b/apps/login/src/lib/session.ts
index 758594845c1..58fe1d20dfc 100644
--- a/apps/login/src/lib/session.ts
+++ b/apps/login/src/lib/session.ts
@@ -5,6 +5,7 @@ import { getSession } from "./zitadel";
 
 type LoadMostRecentSessionParams = {
   serviceUrl: string;
+  serviceRegion: string;
   sessionParams: {
     loginName?: string;
     organization?: string;
@@ -13,6 +14,7 @@ type LoadMostRecentSessionParams = {
 
 export async function loadMostRecentSession({
   serviceUrl,
+  serviceRegion,
   sessionParams,
 }: LoadMostRecentSessionParams): Promise<Session | undefined> {
   const recent = await getMostRecentCookieWithLoginname({
@@ -22,6 +24,7 @@ export async function loadMostRecentSession({
 
   return getSession({
     serviceUrl,
+    serviceRegion,
     sessionId: recent.id,
     sessionToken: recent.token,
   }).then((resp: GetSessionResponse) => resp.session);
diff --git a/apps/login/src/lib/zitadel.ts b/apps/login/src/lib/zitadel.ts
index 5a03e5ece07..ba96481e386 100644
--- a/apps/login/src/lib/zitadel.ts
+++ b/apps/login/src/lib/zitadel.ts
@@ -55,13 +55,15 @@ async function cacheWrapper<T>(callback: Promise<T>) {
 
 export async function getBrandingSettings({
   serviceUrl,
+  serviceRegion,
   organization,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   organization?: string;
 }) {
   const settingsService: Client<typeof SettingsService> =
-    await createServiceForHost(SettingsService, serviceUrl);
+    await createServiceForHost(SettingsService, serviceUrl, serviceRegion);
 
   const callback = settingsService
     .getBrandingSettings({ ctx: makeReqCtx(organization) }, {})
@@ -72,13 +74,15 @@ export async function getBrandingSettings({
 
 export async function getLoginSettings({
   serviceUrl,
+  serviceRegion,
   organization,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   organization?: string;
 }) {
   const settingsService: Client<typeof SettingsService> =
-    await createServiceForHost(SettingsService, serviceUrl);
+    await createServiceForHost(SettingsService, serviceUrl, serviceRegion);
 
   const callback = settingsService
     .getLoginSettings({ ctx: makeReqCtx(organization) }, {})
@@ -89,14 +93,17 @@ export async function getLoginSettings({
 
 export async function listIDPLinks({
   serviceUrl,
+  serviceRegion,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.listIDPLinks({ userId }, {});
@@ -104,14 +111,17 @@ export async function listIDPLinks({
 
 export async function addOTPEmail({
   serviceUrl,
+  serviceRegion,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.addOTPEmail({ userId }, {});
@@ -119,14 +129,17 @@ export async function addOTPEmail({
 
 export async function addOTPSMS({
   serviceUrl,
+  serviceRegion,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.addOTPSMS({ userId }, {});
@@ -134,14 +147,17 @@ export async function addOTPSMS({
 
 export async function registerTOTP({
   serviceUrl,
+  serviceRegion,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.registerTOTP({ userId }, {});
@@ -149,11 +165,13 @@ export async function registerTOTP({
 
 export async function getGeneralSettings({
   serviceUrl,
+  serviceRegion,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
 }) {
   const settingsService: Client<typeof SettingsService> =
-    await createServiceForHost(SettingsService, serviceUrl);
+    await createServiceForHost(SettingsService, serviceUrl, serviceRegion);
 
   const callback = settingsService
     .getGeneralSettings({}, {})
@@ -164,13 +182,15 @@ export async function getGeneralSettings({
 
 export async function getLegalAndSupportSettings({
   serviceUrl,
+  serviceRegion,
   organization,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   organization?: string;
 }) {
   const settingsService: Client<typeof SettingsService> =
-    await createServiceForHost(SettingsService, serviceUrl);
+    await createServiceForHost(SettingsService, serviceUrl, serviceRegion);
 
   const callback = settingsService
     .getLegalAndSupportSettings({ ctx: makeReqCtx(organization) }, {})
@@ -181,13 +201,15 @@ export async function getLegalAndSupportSettings({
 
 export async function getPasswordComplexitySettings({
   serviceUrl,
+  serviceRegion,
   organization,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   organization?: string;
 }) {
   const settingsService: Client<typeof SettingsService> =
-    await createServiceForHost(SettingsService, serviceUrl);
+    await createServiceForHost(SettingsService, serviceUrl, serviceRegion);
 
   const callback = settingsService
     .getPasswordComplexitySettings({ ctx: makeReqCtx(organization) })
@@ -198,28 +220,32 @@ export async function getPasswordComplexitySettings({
 
 export async function createSessionFromChecks({
   serviceUrl,
+  serviceRegion,
   checks,
   challenges,
   lifetime,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   checks: Checks;
   challenges: RequestChallenges | undefined;
   lifetime?: Duration;
 }) {
   const sessionService: Client<typeof SessionService> =
-    await createServiceForHost(SessionService, serviceUrl);
+    await createServiceForHost(SessionService, serviceUrl, serviceRegion);
 
   return sessionService.createSession({ checks, challenges, lifetime }, {});
 }
 
 export async function createSessionForUserIdAndIdpIntent({
   serviceUrl,
+  serviceRegion,
   userId,
   idpIntent,
   lifetime,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
   idpIntent: {
     idpIntentId?: string | undefined;
@@ -228,7 +254,7 @@ export async function createSessionForUserIdAndIdpIntent({
   lifetime?: Duration;
 }) {
   const sessionService: Client<typeof SessionService> =
-    await createServiceForHost(SessionService, serviceUrl);
+    await createServiceForHost(SessionService, serviceUrl, serviceRegion);
 
   return sessionService.createSession({
     checks: {
@@ -246,6 +272,7 @@ export async function createSessionForUserIdAndIdpIntent({
 
 export async function setSession({
   serviceUrl,
+  serviceRegion,
   sessionId,
   sessionToken,
   challenges,
@@ -253,6 +280,7 @@ export async function setSession({
   lifetime,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   sessionId: string;
   sessionToken: string;
   challenges: RequestChallenges | undefined;
@@ -260,7 +288,7 @@ export async function setSession({
   lifetime?: Duration;
 }) {
   const sessionService: Client<typeof SessionService> =
-    await createServiceForHost(SessionService, serviceUrl);
+    await createServiceForHost(SessionService, serviceUrl, serviceRegion);
 
   return sessionService.setSession(
     {
@@ -277,42 +305,51 @@ export async function setSession({
 
 export async function getSession({
   serviceUrl,
+  serviceRegion,
   sessionId,
   sessionToken,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   sessionId: string;
   sessionToken: string;
 }) {
   const sessionService: Client<typeof SessionService> =
-    await createServiceForHost(SessionService, serviceUrl);
+    await createServiceForHost(SessionService, serviceUrl, serviceRegion);
 
   return sessionService.getSession({ sessionId, sessionToken }, {});
 }
 
 export async function deleteSession({
   serviceUrl,
+  serviceRegion,
   sessionId,
   sessionToken,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   sessionId: string;
   sessionToken: string;
 }) {
   const sessionService: Client<typeof SessionService> =
-    await createServiceForHost(SessionService, serviceUrl);
+    await createServiceForHost(SessionService, serviceUrl, serviceRegion);
 
   return sessionService.deleteSession({ sessionId, sessionToken }, {});
 }
 
 type ListSessionsCommand = {
   serviceUrl: string;
+  serviceRegion: string;
   ids: string[];
 };
 
-export async function listSessions({ serviceUrl, ids }: ListSessionsCommand) {
+export async function listSessions({
+  serviceUrl,
+  serviceRegion,
+  ids,
+}: ListSessionsCommand) {
   const sessionService: Client<typeof SessionService> =
-    await createServiceForHost(SessionService, serviceUrl);
+    await createServiceForHost(SessionService, serviceUrl, serviceRegion);
 
   return sessionService.listSessions(
     {
@@ -331,6 +368,7 @@ export async function listSessions({ serviceUrl, ids }: ListSessionsCommand) {
 
 export type AddHumanUserData = {
   serviceUrl: string;
+  serviceRegion: string;
   firstName: string;
   lastName: string;
   email: string;
@@ -340,6 +378,7 @@ export type AddHumanUserData = {
 
 export async function addHumanUser({
   serviceUrl,
+  serviceRegion,
   email,
   firstName,
   lastName,
@@ -349,6 +388,7 @@ export async function addHumanUser({
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.addHumanUser({
@@ -372,14 +412,17 @@ export async function addHumanUser({
 
 export async function addHuman({
   serviceUrl,
+  serviceRegion,
   request,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   request: AddHumanUserRequest;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.addHumanUser(request);
@@ -387,16 +430,19 @@ export async function addHuman({
 
 export async function verifyTOTPRegistration({
   serviceUrl,
+  serviceRegion,
   code,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   code: string;
   userId: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.verifyTOTPRegistration({ code, userId }, {});
@@ -404,14 +450,17 @@ export async function verifyTOTPRegistration({
 
 export async function getUserByID({
   serviceUrl,
+  serviceRegion,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.getUserByID({ userId }, {});
@@ -419,16 +468,19 @@ export async function getUserByID({
 
 export async function verifyInviteCode({
   serviceUrl,
+  serviceRegion,
   userId,
   verificationCode,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
   verificationCode: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.verifyInviteCode({ userId, verificationCode }, {});
@@ -436,14 +488,17 @@ export async function verifyInviteCode({
 
 export async function resendInviteCode({
   serviceUrl,
+  serviceRegion,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.resendInviteCode({ userId }, {});
@@ -451,10 +506,12 @@ export async function resendInviteCode({
 
 export async function sendEmailCode({
   serviceUrl,
+  serviceRegion,
   userId,
   urlTemplate,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
   urlTemplate: string;
 }) {
@@ -473,6 +530,7 @@ export async function sendEmailCode({
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.sendEmailCode(medium, {});
@@ -480,10 +538,12 @@ export async function sendEmailCode({
 
 export async function createInviteCode({
   serviceUrl,
+  serviceRegion,
   urlTemplate,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   urlTemplate: string;
   userId: string;
 }) {
@@ -499,6 +559,7 @@ export async function createInviteCode({
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.createInviteCode(
@@ -515,6 +576,7 @@ export async function createInviteCode({
 
 export type ListUsersCommand = {
   serviceUrl: string;
+  serviceRegion: string;
   loginName?: string;
   userName?: string;
   email?: string;
@@ -524,6 +586,7 @@ export type ListUsersCommand = {
 
 export async function listUsers({
   serviceUrl,
+  serviceRegion,
   loginName,
   userName,
   phone,
@@ -615,6 +678,7 @@ export async function listUsers({
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.listUsers({ queries });
@@ -622,6 +686,7 @@ export async function listUsers({
 
 export type SearchUsersCommand = {
   serviceUrl: string;
+  serviceRegion: string;
   searchValue: string;
   loginSettings: LoginSettings;
   organizationId?: string;
@@ -667,6 +732,7 @@ const EmailQuery = (searchValue: string) =>
  *  */
 export async function searchUsers({
   serviceUrl,
+  serviceRegion,
   searchValue,
   loginSettings,
   organizationId,
@@ -700,6 +766,7 @@ export async function searchUsers({
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   const loginNameResult = await userService.listUsers({ queries });
@@ -786,11 +853,13 @@ export async function searchUsers({
 
 export async function getDefaultOrg({
   serviceUrl,
+  serviceRegion,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
 }): Promise<Organization | null> {
   const orgService: Client<typeof OrganizationService> =
-    await createServiceForHost(OrganizationService, serviceUrl);
+    await createServiceForHost(OrganizationService, serviceUrl, serviceRegion);
 
   return orgService
     .listOrganizations(
@@ -811,13 +880,15 @@ export async function getDefaultOrg({
 
 export async function getOrgsByDomain({
   serviceUrl,
+  serviceRegion,
   domain,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   domain: string;
 }) {
   const orgService: Client<typeof OrganizationService> =
-    await createServiceForHost(OrganizationService, serviceUrl);
+    await createServiceForHost(OrganizationService, serviceUrl, serviceRegion);
 
   return orgService.listOrganizations(
     {
@@ -836,16 +907,19 @@ export async function getOrgsByDomain({
 
 export async function startIdentityProviderFlow({
   serviceUrl,
+  serviceRegion,
   idpId,
   urls,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   idpId: string;
   urls: RedirectURLsJson;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.startIdentityProviderIntent({
@@ -859,16 +933,19 @@ export async function startIdentityProviderFlow({
 
 export async function retrieveIdentityProviderInformation({
   serviceUrl,
+  serviceRegion,
   idpIntentId,
   idpIntentToken,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   idpIntentId: string;
   idpIntentToken: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.retrieveIdentityProviderIntent({
@@ -879,12 +956,18 @@ export async function retrieveIdentityProviderInformation({
 
 export async function getAuthRequest({
   serviceUrl,
+  serviceRegion,
   authRequestId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   authRequestId: string;
 }) {
-  const oidcService = await createServiceForHost(OIDCService, serviceUrl);
+  const oidcService = await createServiceForHost(
+    OIDCService,
+    serviceUrl,
+    serviceRegion,
+  );
 
   return oidcService.getAuthRequest({
     authRequestId,
@@ -893,28 +976,37 @@ export async function getAuthRequest({
 
 export async function createCallback({
   serviceUrl,
+  serviceRegion,
   req,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   req: CreateCallbackRequest;
 }) {
-  const oidcService = await createServiceForHost(OIDCService, serviceUrl);
+  const oidcService = await createServiceForHost(
+    OIDCService,
+    serviceUrl,
+    serviceRegion,
+  );
 
   return oidcService.createCallback(req);
 }
 
 export async function verifyEmail({
   serviceUrl,
+  serviceRegion,
   userId,
   verificationCode,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
   verificationCode: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.verifyEmail(
@@ -928,10 +1020,12 @@ export async function verifyEmail({
 
 export async function resendEmailCode({
   serviceUrl,
+  serviceRegion,
   userId,
   urlTemplate,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
   urlTemplate: string;
 }) {
@@ -948,6 +1042,7 @@ export async function resendEmailCode({
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.resendEmailCode(request, {});
@@ -955,16 +1050,19 @@ export async function resendEmailCode({
 
 export async function retrieveIDPIntent({
   serviceUrl,
+  serviceRegion,
   id,
   token,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   id: string;
   token: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.retrieveIdentityProviderIntent(
@@ -975,29 +1073,38 @@ export async function retrieveIDPIntent({
 
 export async function getIDPByID({
   serviceUrl,
+  serviceRegion,
   id,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   id: string;
 }) {
   const idpService: Client<typeof IdentityProviderService> =
-    await createServiceForHost(IdentityProviderService, serviceUrl);
+    await createServiceForHost(
+      IdentityProviderService,
+      serviceUrl,
+      serviceRegion,
+    );
 
   return idpService.getIDPByID({ id }, {}).then((resp) => resp.idp);
 }
 
 export async function addIDPLink({
   serviceUrl,
+  serviceRegion,
   idp,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   idp: { id: string; userId: string; userName: string };
   userId: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.addIDPLink(
@@ -1015,10 +1122,12 @@ export async function addIDPLink({
 
 export async function passwordReset({
   serviceUrl,
+  serviceRegion,
   userId,
   urlTemplate,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
   urlTemplate?: string;
 }) {
@@ -1034,6 +1143,7 @@ export async function passwordReset({
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.passwordReset(
@@ -1050,12 +1160,14 @@ export async function passwordReset({
 
 export async function setUserPassword({
   serviceUrl,
+  serviceRegion,
   userId,
   password,
   user,
   code,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
   password: string;
   user: User;
@@ -1072,6 +1184,7 @@ export async function setUserPassword({
   if (!code) {
     const authmethods = await listAuthenticationMethodTypes({
       serviceUrl,
+      serviceRegion,
       userId,
     });
 
@@ -1097,6 +1210,7 @@ export async function setUserPassword({
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.setPassword(payload, {}).catch((error) => {
@@ -1111,14 +1225,17 @@ export async function setUserPassword({
 
 export async function setPassword({
   serviceUrl,
+  serviceRegion,
   payload,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   payload: SetPasswordRequest;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.setPassword(payload, {});
@@ -1132,14 +1249,17 @@ export async function setPassword({
  */
 export async function createPasskeyRegistrationLink({
   serviceUrl,
+  serviceRegion,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.createPasskeyRegistrationLink({
@@ -1160,16 +1280,19 @@ export async function createPasskeyRegistrationLink({
  */
 export async function registerU2F({
   serviceUrl,
+  serviceRegion,
   userId,
   domain,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
   domain: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.registerU2F({
@@ -1186,14 +1309,17 @@ export async function registerU2F({
  */
 export async function verifyU2FRegistration({
   serviceUrl,
+  serviceRegion,
   request,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   request: VerifyU2FRegistrationRequest;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.verifyU2FRegistration(request, {});
@@ -1208,10 +1334,12 @@ export async function verifyU2FRegistration({
  */
 export async function getActiveIdentityProviders({
   serviceUrl,
+  serviceRegion,
   orgId,
   linking_allowed,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   orgId?: string;
   linking_allowed?: boolean;
 }) {
@@ -1220,7 +1348,7 @@ export async function getActiveIdentityProviders({
     props.linkingAllowed = linking_allowed;
   }
   const settingsService: Client<typeof SettingsService> =
-    await createServiceForHost(SettingsService, serviceUrl);
+    await createServiceForHost(SettingsService, serviceUrl, serviceRegion);
 
   return settingsService.getActiveIdentityProviders(props, {});
 }
@@ -1233,14 +1361,17 @@ export async function getActiveIdentityProviders({
  */
 export async function verifyPasskeyRegistration({
   serviceUrl,
+  serviceRegion,
   request,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   request: VerifyPasskeyRegistrationRequest;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.verifyPasskeyRegistration(request, {});
@@ -1256,11 +1387,13 @@ export async function verifyPasskeyRegistration({
  */
 export async function registerPasskey({
   serviceUrl,
+  serviceRegion,
   userId,
   code,
   domain,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
   code: { id: string; code: string };
   domain: string;
@@ -1268,6 +1401,7 @@ export async function registerPasskey({
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.registerPasskey({
@@ -1285,14 +1419,17 @@ export async function registerPasskey({
  */
 export async function listAuthenticationMethodTypes({
   serviceUrl,
+  serviceRegion,
   userId,
 }: {
   serviceUrl: string;
+  serviceRegion: string;
   userId: string;
 }) {
   const userService: Client<typeof UserService> = await createServiceForHost(
     UserService,
     serviceUrl,
+    serviceRegion,
   );
 
   return userService.listAuthenticationMethodTypes({
diff --git a/apps/login/src/middleware.ts b/apps/login/src/middleware.ts
index cb42234cac4..8ffe8e58302 100644
--- a/apps/login/src/middleware.ts
+++ b/apps/login/src/middleware.ts
@@ -23,7 +23,7 @@ export async function middleware(request: NextRequest) {
 
   const _headers = await headers();
 
-  const serviceUrl = getServiceUrlFromHeaders(_headers);
+  const { serviceUrl, serviceRegion } = getServiceUrlFromHeaders(_headers);
 
   const instanceHost = `${serviceUrl}`.replace("https://", "");
 
diff --git a/turbo.json b/turbo.json
index 1db73e60c96..bf02da7ea08 100644
--- a/turbo.json
+++ b/turbo.json
@@ -6,6 +6,12 @@
     "DEBUG",
     "VERCEL_URL",
     "EMAIL_VERIFICATION",
+    "EU1_AUDIENCE",
+    "EU1_SYSTEM_USER_ID",
+    "EU1_SYSTEM_USER_PRIVATE_KEY",
+    "US1_AUDIENCE",
+    "US1_SYSTEM_USER_ID",
+    "US1_SYSTEM_USER_PRIVATE_KEY",
     "AUDIENCE",
     "SYSTEM_USER_ID",
     "SYSTEM_USER_PRIVATE_KEY",