Microsoft incident · via Microsoft consumer products
Users may be unable to use Microsoft Copilot
Resolved after 3 hours 5 minutes, affecting Microsoft Copilot, on May 29, 2026.
User impact: Users were unable to use Microsoft Copilot. Final status: The underlying infrastructure that the Copilot LLM APIs use has recovered after the mitigation actions were applied. We monitored the environment for an extended period of time and have validated that service has been restored. Start time: Friday, May 29, 2026, at 2:30 PM UTC End time: Friday, May 29, 2026, at 5:35 PM UTC This is the final update for this event.
Affected components
Update timeline
- monitoring May 29, 2026, 03:50 PM UTC
User impact: Users may be unable to use Microsoft Copilot. Current status: We're reviewing service telemetry to isolate the source of the issue. Next update by: Friday, May 29, 2026, at 5:30 PM UTC
- monitoring May 29, 2026, 05:01 PM UTC
User impact: Users may be unable to use Microsoft Copilot. Current status: We've identified high utilization on the underlying infrastructure that the Copilot LLM APIs use and are applying mitigations. Additionally, at the Copilot service level, we're reviewing options to change routing paths, throttling rules and retry logic to allow the underlying infrastructure to recover. Next update by: Friday, May 29, 2026, at 6:30 PM UTC
- resolved May 29, 2026, 07:01 PM UTC
User impact: Users were unable to use Microsoft Copilot. Final status: The underlying infrastructure that the Copilot LLM APIs use has recovered after the mitigation actions were applied. We monitored the environment for an extended period of time and have validated that service has been restored. Start time: Friday, May 29, 2026, at 2:30 PM UTC End time: Friday, May 29, 2026, at 5:35 PM UTC This is the final update for this event.
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