Investigating - We are investigating issues with authenticating Exchange account using a service account. We are seeing accounts turning invalid right after authentication and also problems when using a different refresh token with the same OAuth client id. We’ll provide updates when we know more.
Apr 21, 10:51 PDT
Resolved -
This incident has been resolved.
Apr 8, 07:06 PDT
Identified -
We are receiving reports of Exchange accounts receiving a 500 error while attempting to authenticate. We have identified the root cause and are working on deploying a fix.
Apr 8, 05:47 PDT