Microsoft 365 Alert – Service Degradation – Microsoft Copilot (Microsoft 365) – Some users’ requests to the Researcher agent in Microsoft Copilot (Microsoft 365) may intermittently fail – RESOLVED

Announcements Sourav Nandi

04/09/2025 08:53:00 AM

NHSmail Reference: INC46620573

Microsoft Reference: CP1147304

Issue Status: RESOLVED

Issue Description: Some users’ requests to the Researcher agent in Microsoft Copilot (Microsoft 365) may intermittently fail.

More info: Affected users may see the following error when their requests to the Researcher agent fails: “Something went wrong.”

Final Update: 08/09/2025 09:05:00 AM – Microsoft have completed their monitoring and confirmed the added capacity has successfully resolved the issue.

Scope of impact: Some users leveraging the Researcher agent in Copilot are intermittently impacted. This issue likely occurs more frequently for users located in North America and Europe.

Root cause: A portion of the Researcher service infrastructure is experiencing elevated request volumes, which is leading to system overload and degraded reliability

Next steps: Microsoft are continuing to analyze the affected routing configuration to understand what’s preventing it from being honored so they can address any identified issues and prevent this from happening again.