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

Title: Users' queries to Microsoft 365 Copilot Chat may return no response, and users receive an error User impact: Users' queries to Copilot Chat may return no response, and users receive an error. More info: When users attempt to query Copilot Chat, some of their queries may return no response and instead, users may receive an error that states, "Something went wrong." Current status: Our service health monitoring alerted us to an increase in failures occurring when users attempt to query Copilot Chat. We're reviewing our service health telemetry to isolate the source of the failures, so that we can developed a mitigation plan. Scope of impact: Any user attempting to query Copilot Chat may be impacted. Next update by: Thursday, September 3, 2026, at 6:30 PM UTC

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.