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 – ONGOING

29/01/2026 08:30:00 AM

NHSmail Reference: INC46736524

Microsoft Reference: TM1223984

Issue Status: ONGOING

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.

Current Update: 02/02/2026 08:32:00 AM – Microsoft has completed the deployment of their code solution to the affected environment; however, an additional deployment is needed to update another setting to fully remediate impact. They are deploying this update to a small subset of affected users, after which they will perform additional testing and validations to ensure no adverse effects occur before proceeding further.

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 update by: Monday, February 2, 2026, at 11:00 PM UTC