MO1198797: Microsoft 365 suite Service Health Incident (Service Degradation)

[365 Service Alert]

Users in the Japan region are currently experiencing access and sign‑in issues with Microsoft 365 and Microsoft Copilot .                                                                                                                                                                                   

Users in the Japan region are currently experiencing access and sign‑in issues with Microsoft 365 and Microsoft Copilot ID: MO1198797 Issue type: Incident Status Service Degradation Impacted services Microsoft 365 suite Details Title: Users in the Japan region are currently experiencing access and sign‑in issues with Microsoft 365 and Microsoft Copilot User impact: Users in the Japan region are currently experiencing access and sign‑in issues with Microsoft 365 and Microsoft Copilot. Current status: We’re actively reviewing service telemetry to identify the underlying cause of the issue and determine appropriate mitigation actions. Scope of impact: Your organization may be affected by this event, and some users attempting to access Microsoft 365 services including Copilot may be impacted. Next update by: Thursday, December 18, 2025, at 2:00 AM UTC Is this message helpful? Did you find this email helpful? Yes No To customize what’s included in this email, who gets it, or to unsubscribe, set your Service health preferences. If you are receiving this email because your Admin added you as a recipient, please contact your Admin to unsubscribe. Privacy Statement Microsoft Corporation, One Microsoft Way, ​Redmond, WA 98052​