Start Time
Nov 12, 2026, 12:26 PM CST
Affected Services
Exchange Online
Microsoft Teams
SharePoint Online
Microsoft Copilot 365
Microsoft Defender XDR
Microsoft Planner
Microsoft To Do
Microsoft Intune
Microsoft Defender for Office 365
Microsoft Purview – Including Authorization, Auto Labelling, Data Loss Prevention (DLP), Communication Compliance, and Data Classification
Power BI – Users may intermittently experience issues exporting reports with MIP sensitivity labels to PDF
Microsoft 365 Apps Admin Center – Including Cloud Update, Cloud Policy, and Inventory
Scope of Impact
Users may experience connectivity issues, intermittent service disruptions, or be unable to access multiple Microsoft 365 services.
Current Status
Microsoft continues to investigate and restore the affected services. Their investigation has identified that a core process on the impacted servers is becoming overwhelmed, causing servers to stop responding and resulting in reduced service capacity.
Previous recovery actions have not provided the expected improvement. Microsoft is now testing additional recovery methods, including isolating affected infrastructure, restarting components, and gradually restoring traffic to confirm stability.
Latest Microsoft Update – Nov 12, 2026
Microsoft is continuing to pursue all available recovery options, as previous mitigation efforts have not provided the anticipated relief.
The investigation has identified that a core process on affected servers is becoming overwhelmed, causing those servers to stop responding and contributing to the loss of service capacity.
To validate a potential recovery approach, Microsoft is taking the following actions:
Fully isolating a portion of the affected service infrastructure.
Restarting impacted components and gradually reintroducing traffic to validate service stability.
Analyzing traffic patterns across its infrastructure to identify contributing factors.
Evaluating whether isolating traffic within individual regions could allow affected regions to recover independently.
Microsoft continues to monitor the recovery process and evaluate additional mitigation options to restore service availability.
We will continue monitoring Microsoft's service health updates and provide additional information as it becomes available.