Title: Users may be unable to access SharePoint Online sites and receive an authentication error
User impact: Users may be unable to access SharePoint Online sites and receive an authentication error.
Current status: We anticipate that the secondary fix will complete over the weekend and we’ll monitor service telemetry into the start of the upcoming business week to ensure that service is restored.
Scope of impact: Some users attempting to access SharePoint Online sites may be impacted.
Start time: Wednesday, February 7, 2024, at 1:00 AM UTC
Root cause: A recent update intended to optimize the code path leveraged for users’ sign-ins introduced a code issue, resulting in impact.
Next update by: Monday, February 12, 2024, at 8:30 PM UTC
