Companies/Microsoft 365/Incidents

Microsoft 365: Microsoft 365 (incl. Teams) status: Service degradation

Timeline of updates

1. investigating2026-11-13 09:14 UTC

   User impact: Users may be unable
   to connect to multiple Microsoft 365 services.

   More info: Features of the
   Microsoft 365 services below that interact with Exchange Online and email
   services are impacted. Elements of those services that do not depend on
   interaction with Exchange Online remain functional.

    - Exchange Online: Users may be
   unable to access their mailbox using Outlook on the web, Outlook desktop
   (MAPI), Exchange ActiveSync (EAS), or REST-based connections, and email
   delivery may be delayed.

    - Microsoft 365 admin center:
   Admins may be unable to load some admin center pages.

    - Microsoft 365 apps: Users may be
   unable to view their recently used files.

   - Microsoft 365 Apps Admin Center:
   Multiple services including Cloud Update, Cloud Policy, and Inventory are
   affected.

    - Microsoft 365 Education:
   Features including Assignments, Reading Progress, and Speaker Progress may be
   impacted.

    - Microsoft Copilot 365: Users may
   be unable to load Copilot Chat or receive responses in the web and desktop
   apps, and Copilot experiences may be unable to access work data such as email,
   calendar, and files.

    - Microsoft Defender for Office
   365: Failures may occur for scenarios including access to Safe Links, Safe
   Attachments, protection and submission policies, and attempts to view
   Quarantine, Threat Explorer, and Email remediation events. Additionally, delays
   may occur for Tenant Allow / Block list changes, unified Role-Based Access
   Control, reporting, message traces, content extraction, and outbound
   protection. Users clicking on wrapped/rewritten URLs typically processed by
   Safe Links will result in a failure to navigate, as Safe Links fails to process
   it. Users who are able to successfully access the Quarantine portal may
   encounter failures when attempting to release items from quarantine.

    - Microsoft Defender XDR: Users
   may be unable to load Microsoft Defender portal pages or solution tabs.

   - Microsoft Fabric: Users may
   encounter failures when exporting reports with sensitivity labels to PDF or
   PowerPoint, when updating artifacts with sensitivity labels, or opening pbix
   with sensitivity label in Power BI Desktop. As a workaround, users can remove
   the sensitivity label from the affected item to complete the operation, if
   their organization's data protection policies allow it.

    - Microsoft Graph: API requests
   that access Exchange Online data, such as mail, calendar, and contacts, may
   time out and prevent users from managing Teams, Channels, Membership, Apps
   management and send activity notifications using Graph API.

    - Microsoft Intune: Scenarios
   including device enrollment, device check-in, and device compliance policies
   may have been intermittently impacted.

    - Microsoft Planner: Users are
   experiencing Plan and Task operation reliability issues.

   - Microsoft Power Apps: Users may
   be intermittently unable to sign-in to the Power Apps or Field Service mobile
   apps. Affected users may be able to utilize Power Apps or Field Service on the
   web as a way to circumvent impact, and users who are already signed in can
   potentially avoid impact by not signing out, clearing app data, or reinstalling
   while the issue is ongoing.

    - Microsoft Purview: Multiple
   Purview services including Authorization, auto-labeling, Data Loss Prevention
   (DLP) across Microsoft 365 services, Communication Compliance, Information
   Protection label and auto-labeling policies, Role-Based Access Control (RBAC)
   and Data Classification are impacted, and users may be unable to open or load
   Microsoft Purview portal pages or protected content. Audit searches, protected
   content creation, eDiscovery tasks such as search and export, Data
   Classification and On Demand Scan features may also be impacted.

    - Microsoft Teams: Most of the
   core functionality including joining calls, meetings, group chats, and channel
   messages are not impacted. Scenarios that depend on Exchange Online, including
   Calendar related failures with scheduling, invites, viewing, and meeting edits.
   Creation of Live or Virtual events fail. Failures with Copilot responses for
   outlook, calendar, or M365 files, read history, or adding to new chats.
   Navigating to App chats, adding new contacts or syncing contacts in settings
   fail. Standard channels are working fine but users may experience the inability
   to create or delete private or shared channels.

    - Microsoft To Do: The app may not
   load, and users may see operation failures.

   - Power BI: All users may
   intermittently be unable to export reports with MIP sensitivity labels to PDF
   in Power BI. 

    - SharePoint Online: Some users
   may experience issues when sharing SharePoint Online files with people outside
   their organization, where external sharing is permitted by both
   organization-level and site-level settings. Additionally, features that depend on
   Exchange Online may be impacted. Accessing files stored directly in SharePoint
   Online remains functional.

   - Universal Print: Users may
   encounter errors submitting print jobs or using admin features.

    - Windows 365: Customers who have
   configured their tenant and Cloud PCs to use Microsoft Purview Customer Key for
   Windows 365 Cloud PCs may have users who are unable to connect to their Cloud
   PCs.

   Current
   status: Recovery efforts are ongoing across impacted infrastructure. We are
   seeing early signs of stabilization, but service capacity has not yet returned
   to normal levels and health remains variable as traffic is carefully
   reintroduced.Our
   primary mitigation path continues to focus on service stability and controlled
   recovery. Engineering teams are cycling affected infrastructure through traffic
   drain, restart, remediation, and staged return-to-service while monitoring
   closely. We are also evaluating additional mitigation options to improve
   recovery speed and consistency. Network
   and traffic-management actions remain in progress, and we continue to
   prioritize backlog and queue health to preserve delayed mail during recovery.
   As part of this effort, we are extending the email timeout window to 48
   hours to help protect delayed messages while service recovery continues. At
   this time, we are not aware of any malicious activity causing this incident. We
   will continue to treat this with urgency until full mitigation, and we will
   share a full Post-Incident Report with root cause and defense-in-depth actions
   after recovery is complete.

   Next update by: Friday, November
   13, 2026, at 10:00 AM UTC

Changes Rewindex caught on this incident

• Nov 13Incident updated: Microsoft 365 (incl. Teams) status: Service degradation

Impact, status and times are the vendor’s own, as last archived.

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