08/31/2026
⚠️ Microsoft 365 Service Advisory
Microsoft has reported a service degradation affecting multiple Microsoft 365 services, including:
• SharePoint Online & OneDrive for Business
• Exchange Online
• Microsoft Teams
• Microsoft Purview
• Microsoft Defender XDR
• Microsoft 365 Admin Center
Organizations may experience issues such as authentication failures, connectivity problems, degraded Teams functionality, SharePoint/OneDrive access challenges, and admin portal access issues.
Microsoft has indicated that the issue is related to a core authentication configuration and engineering teams are actively working on mitigation and recovery efforts.
If your organization is experiencing Microsoft 365 service interruptions today, this may be related to the ongoing Microsoft incident. We recommend monitoring the Microsoft 365 Service Health Dashboard for updates and communicating potential impacts to end users.
We'll continue to monitor developments and share updates as they become available.