User impact: Users with specific conditional access policies applied may be unable to access any Microsoft 365 service.

More info: This issue affects organizations with geolocation-based conditional access policies applied and may cause tenant-wide sign-in disruptions to any Microsoft 365 service.

Current status: We’re continuing to revert the change to the most recent healthy configuration. This process is progressing as expected and some customers may be experiencing remediated impact.

Scope of impact: This issue may affect any user in an organization with specific geolocation-based conditional access policies applied.

Start time: Thursday, March 23, 2023, at 3:00 AM UTC
                                                                                                                           
Root cause: A recent update applied to a section of infrastructure responsible for regulating user geo-location may be inadvertently causing impact.

Next update by: Thursday, March 23, 2023, at 6:00 PM UTC