Some users may be unable to access Microsoft Copilot across multiple Microsoft 365 applications

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1. 29 Oct 2026 · 07:43:08 UTC Observed stateOngoing → Ended
2. 28 Oct 2026 · 07:46:24 UTC StageService degradation → Service restored
3. 28 Oct 2026 · 07:46:24 UTC SummaryUser impact: Users may be unable to access Microsoft Copilot across multiple Microsoft 365 applications. More info: Affected applications include, but aren't limited to: - Outlook on the web - Outlook desktop - Microsoft Teams desktop Current status: We’re reviewing service telemetry and system logs to isolate the root cause, in order to develop a remediation plan. Scope of impact: Impact is specific to some users in South India and Singapore attempting to access Microsoft Copilot across multiple Microsoft 365 applications. This information may be updated as our investigation continues. Next update by: Wednesday, October 28, 2026, at 9:30 AM UTC → User impact: Users may be unable to access Microsoft Copilot across multiple Microsoft 365 applications. More info: Affected applications include, but aren't limited to: - Outlook on the web - Outlook desktop - Microsoft Teams desktop Final status: The investigation is complete and we've determined the service is healthy. A service incident didn't actually occur. This communication will expire in 24 hours.
4. 28 Oct 2026 · 07:36:11 UTC StageService restored → Service degradation
5. 28 Oct 2026 · 07:36:11 UTC Observed stateEnded → Ongoing
6. 28 Oct 2026 · 07:36:11 UTC SummaryUser impact: Users may be unable to access Microsoft Copilot in Microsoft 365. Final status: No service issue occurred. This is the final update for the event. → User impact: Users may be unable to access Microsoft Copilot across multiple Microsoft 365 applications. More info: Affected applications include, but aren't limited to: - Outlook on the web - Outlook desktop - Microsoft Teams desktop Current status: We’re reviewing service telemetry and system logs to isolate the root cause, in order to develop a remediation plan. Scope of impact: Impact is specific to some users in South India and Singapore attempting to access Microsoft Copilot across multiple Microsoft 365 applications. This information may be updated as our investigation continues. Next update by: Wednesday, October 28, 2026, at 9:30 AM UTC
7. 28 Oct 2026 · 07:36:11 UTC TitleUsers may be unable to access Microsoft Copilot in Microsoft 365 → Some users may be unable to access Microsoft Copilot across multiple Microsoft 365 applications
8. 27 Oct 2026 · 23:04:12 UTC Observed stateOngoing → Ended
9. 26 Oct 2026 · 23:04:45 UTC SummaryUser impact: We're checking for potential impact to your users. Final status: The investigation is complete and we've determined the service is healthy. A service incident didn't actually occur. This communication will expire in 24 hours. This is the final update for the event. → User impact: Users may be unable to access Microsoft Copilot in Microsoft 365. Final status: No service issue occurred. This is the final update for the event.
10. 26 Oct 2026 · 23:04:45 UTC TitleWe're looking into a potential problem impacting Microsoft 365 Copilot → Users may be unable to access Microsoft Copilot in Microsoft 365
11. 26 Oct 2026 · 17:02:58 UTC StageService degradation → Service restored
12. 26 Oct 2026 · 17:02:58 UTC SummaryUser impact: Users are experiencing issues in the service. Current status: We're investigating a potential issue impacting Microsoft 365 Copilot and checking for impact to your organization. We'll provide an update within 30 minutes. → User impact: We're checking for potential impact to your users. Final status: The investigation is complete and we've determined the service is healthy. A service incident didn't actually occur. This communication will expire in 24 hours. This is the final update for the event.
13. 26 Oct 2026 · 17:02:58 UTC TitleUsers experience service quality issues in Microsoft Copilot for Microsoft 365 → We're looking into a potential problem impacting Microsoft 365 Copilot
14. 26 Oct 2026 · 16:52:56 UTC SummaryUser impact: Users may be unable to access Microsoft Copilot in Microsoft 365. Current status: We’ve identified that a recent service update contained a code defect that restricted some requests to the same region as the deployed service, resulting in request failures. We’ve prepared a fix and plan to deploy it through our standard service update process. Scope of impact: Your organization is affected by this event, and any user attempting to access Microsoft Copilot in Microsoft 365 may be impacted. Start time: Tuesday, October 20, 2026, at 1:00 PM UTC Root cause: A recent service update contained a code defect that restricted some requests to the same region as the deployed service, resulting in request failures. Next update by: Wednesday, October 28, 2026, at 7:00 PM UTC → User impact: Users are experiencing issues in the service. Current status: We're investigating a potential issue impacting Microsoft 365 Copilot and checking for impact to your organization. We'll provide an update within 30 minutes.
15. 26 Oct 2026 · 16:52:56 UTC TitleUsers may be unable to access Microsoft Copilot in Microsoft 365 → Users experience service quality issues in Microsoft Copilot for Microsoft 365
16. 26 Oct 2026 · 12:21:32 UTC SummaryUser impact: Users may be unable to access Microsoft Copilot in Microsoft 365. Current status: We're reviewing service monitoring telemetry to isolate the root cause and develop a remediation plan. Scope of impact: Your organization is affected by this event, and any user attempting to access Microsoft Copilot in Microsoft 365 may be impacted. Next update by: Monday, October 26, 2026, at 12:30 PM UTC → User impact: Users may be unable to access Microsoft Copilot in Microsoft 365. Current status: We’ve identified that a recent service update contained a code defect that restricted some requests to the same region as the deployed service, resulting in request failures. We’ve prepared a fix and plan to deploy it through our standard service update process. Scope of impact: Your organization is affected by this event, and any user attempting to access Microsoft Copilot in Microsoft 365 may be impacted. Start time: Tuesday, October 20, 2026, at 1:00 PM UTC Root cause: A recent service update contained a code defect that restricted some requests to the same region as the deployed service, resulting in request failures. Next update by: Wednesday, October 28, 2026, at 7:00 PM UTC