We're looking into a potential problem impacting Microsoft 365 Copilot

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1. 26 Oct 2026 · 17:02:58 UTC StageService degradation → Service restored
2. 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.
3. 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
4. 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.
5. 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
6. 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