Microsoft 365 Alert – Service Degradation – Microsoft Copilot (Microsoft 365) – Some users may see latency when using tools and chats in the Microsoft 365 Copilot app – RESOLVED

03/06/2026 08:48:00 AM

NHSmail Reference: INC46841358

Microsoft Reference: CP1332829

Issue Status: RESOLVED

Issue Description: Some users may see latency when using tools and chats in the Microsoft 365 Copilot app.

Final Update: 03/06/2026 08:42:00 AM – Microsoft were further investigating the affected infrastructure, they have identified that a sync issue was preventing availability from recovering for a subset of users. They have redirected traffic to bypass the sync issue and confirmed with monitoring internal telemetry that the impact is remediated.

Scope of impact: Some users that were using tools and chants in the Microsoft 365 Copilot app may have been impacted.

Root cause: A portion of infrastructure responsible for tools and chat functionality in the Microsoft 365 Copilot app wasn’t processing requests as efficiently as expected and resulted in an increase in latency within the service.

Next steps: Microsoft further reviewing the portion of infrastructure to understand what prevented it from processing requests as efficiently as expected, so we can help prevent similar issues from reoccurring.