Microsoft Copilot incident
Some users may see failures when accessing Microsoft Copilot
Microsoft Copilot experienced a minor incident on May 14, 2026 affecting Microsoft Copilot and Microsoft 365 Copilot Chat Status, lasting 3h 44m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- monitoring May 14, 2026, 05:09 PM UTC
User impact: Users may see failures when accessing Microsoft Copilot More info: Users may be presented with a 401-error response code. Current status: We're investigating a potential issue with Microsoft Copilot and checking for impact to users. We'll provide an update within 30 minutes.
- resolved May 14, 2026, 05:43 PM UTC
User impact: Users may have seen failures when accessing Microsoft Copilot. More info: Users may be presented with a 401-error response code. Final status: We've completed a deployment to roll back to the most recent stable version of the service. Through our service side telemetry, we've confirmed that the service has been restored to a healthy level. Start time: Thursday, May 14, 2026, at 1:16 PM UTC End time: Thursday, May 14, 2026, at 5:00 PM UTC This is the final update for this event.