service · inferred from evidence
ADFS
Active Directory Federation Services, mentioned as an OAuth provider in the login failure context.
- Grafana 10 upgrade: OAuth login fails with "user already exists"
After upgrading Grafana 9.x to 10.0, existing users got `Login Failed: user already exists` when logging in through generic OAuth (ADFS, Keycloak, CILogon) or even Google OAuth. The users were created by OAuth in 9.x, and nothing in the OAu