# Which Problems Are Solved
After migrating the access token events in #7822, milestones based on
authentication, resp. theses events would not be reached.
# How the Problems Are Solved
Additionally use the `oidc_session.Added` event to check for
`milestone.AuthenticationSucceededOnInstance` and
`milestone.AuthenticationSucceededOnApplication`.
# Additional Changes
None.
# Additional Context
- relates to #7822
- noticed internally