Microsoft 365 Alert – Service Degradation – Microsoft Copilot (Microsoft 365) – Users may not see the search bar or features when creating Copilot notebooks on the desktop client – RESOLVED

Announcements Arpan Das

30/06/2026 09:53:00 AM

NHS.net Connect Reference: INC46865013

Microsoft Reference: CP1409187

Issue Status: RESOLVED

Issue Description: Some users may not see the search bar or features when creating Microsoft 365 Copilot notebooks on the desktop client

More info: Impact is specific to the Mac and Windows desktop clients.

Final Update: 24/07/2026 09:46:00 AM–Microsoft has confirmed that a recent deployment contained a code issue that caused a compatibility conflict with the Microsoft 365 Copilot desktop clients and prevented the affected features from populating during notebook creation, causing impact. They have deployed a code fix to the offending error, after a period of monitoring the service health telemetry they have confirmed impact has ceased and service is restored.

Scope of impact: Some users that are attempting to use the search bar or use features when creating Microsoft 365 Copilot notebooks on the desktop clients may be impacted. This information may be updated as Microsoft’s investigation continues.

Root cause: A recent deployment contained a code issue that caused a compatibility conflict with the Microsoft 365 Copilot desktop clients and prevented the affected features from populating as expected during notebook creation.