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Microsoft 365: Users' queries to Microsoft 365 Copilot Chat may return no response, and users receive an error

microsoftonline.com
September 2026 3 Minor incident

Title: We're looking into a potential problem impacting Microsoft 365 Copilot Chat User impact: We're checking for potential impact to your users. Current status: We're investigating a potential issue impacting Microsoft 365 Copilot Chat and checking for impact to your organization. We'll provide an update within 30 minutes.

Started

17:12 UTC

Duration

Lasted 3h 50m

Source

IsDown

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Affected components: Microsoft Teams

What happened?

Title: We're looking into a potential problem impacting Microsoft 365 Copilot Chat User impact: We're checking for potential impact to your users. Current status: We're investigating a potential issue impacting Microsoft 365 Copilot Chat and checking for impact to your organization. We'll provide an update within 30 minutes.

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