Microsoft 365 Alert – Service Degradation – Microsoft Copilot (Microsoft 365) – Some users may experience delays or failures when receiving responses from Microsoft 365 Copilot – RESOLVED

Announcements Sharmista Mohanta

02/09/2026 09:45:00 AM

NHS.net Connect Reference: INC46924143

Microsoft Reference: CP1465608

Issue Status: RESOLVED

Issue Description: Users may have experienced delays or failures when receiving responses from Microsoft 365 Copilot.

More info: Affected users may have encountered error responses, delayed completions, or requests that failed to complete when using Microsoft 365 Copilot, Copilot Chat, Declarative Agents, and Copilot for Education experiences.

Final Update: 02/09/2026 09:46:00 AM – Microsoft has identified that elevated request volume overwhelmed a portion of the infrastructure responsible for processing Copilot requests, resulting in impact. To remediate the issue, they adjusted traffic flow to reduce the request load on the affected infrastructure. After monitoring the service, they verified that this action successfully resolved the issue.

Scope of impact: Impact was specific to some users attempting to receive responses from Microsoft 365 Copilot, Copilot Chat, Declarative Agents, and Copilot for Education experiences.

Root cause: Elevated request volume overwhelmed a portion of the infrastructure responsible for processing Copilot requests, resulting in impact.

Next steps: Microsoft is investigating why the elevated request volume resulted in impact to prevent recurrence.
– They are optimizing scaling throughout the affected infrastructure to ensure it can better accommodate elevated request volume and prevent this issue from reoccurring.