Microsoft 365 Alert – Service Degradation – Microsoft Copilot (Microsoft 365) – Users intermittently may be unable to create Copilot Notebooks through Microsoft 365 Copilot – RESOLVED

Announcements Shagufta Naaz

19/05/2026 08:55:00 AM

NHSmail Reference: INC46830016

Microsoft Reference: CP1315061

Issue Status: RESOLVED

Issue Description: Users intermittently may be unable to create Copilot Notebooks through Copilot.

More info: Users affected by the issue may see a blank screen when attempting to create a Copilot Notebook.

Subsequent retries to create Copilot Notebooks may succeed.

Final Update: 05/08/2026 08:55:00 AM– Deployment of Microsoft’s fix is complete, and they have determined from service telemetry that this issue is resolved.

Scope of impact: Impact is specific to some users attempting to launch the Microsoft Teams desktop client.

Root cause: A recent Copilot service update introduced a code issue resulting in users being intermittently unable to create Copilot Notebooks through Copilot.