Microsoft 365 Alert – Service Degradation – Microsoft Teams – Users are unable to install apps created with Microsoft Copilot Studio when using shared deep links in Microsoft Teams – RESOLVED

Announcements Shagufta Naaz

29/01/2026 08:30:00 AM

NHSmail Reference: INC46736524

Microsoft Reference: TM1223984

Issue Status: RESOLVED

Issue Description: Users are unable to install apps created with Microsoft Copilot Studio when using shared deep links in Microsoft Teams.

More info: Users may see that the app installed in Microsoft Teams, but the app install fails in the background and an error message is not displayed.

Final Update: 16/02/2026 09:10:00 AM – The fix deployment completed, and Microsoft has confirmed from their internal monitoring telemetry and user reports that impact has been remediated.

Scope of impact: Your organisation is affected by this event, and the issue impacts any user installing apps created with Microsoft Copilot Studio when using shared deep links in Microsoft Teams.

Root cause: A recent Copilot Studio update introduced an issue that is adversely affecting the installation of apps in Microsoft Teams with shared deep links.

Next Steps: Microsoft are reviewing and improving their update validation procedure to detect and prevent similar app installation issues in the future.