Microsoft 365 Alert – Service Degradation – Microsoft Teams – Users may be unable to join shared channels using some links to messages in Microsoft Teams – ONGOING

Announcements Sharmista Mohanta

24/08/2026 09:18:00 AM

NHS.net Connect Reference: INC46916751

Microsoft Reference: TM1459181

Issue Status: ONGOING

Issue Description: Users may be unable to join shared channels using some links to messages in Microsoft Teams.

More info: This issue specifically affects links generated using the “Copy Link” option through the three dots menu located at the top right of the shared channel. Users can bypass this impact by generating links to channels using any alternate method, such as by right-clicking on the channel in the left rail menu or any specific message within the shared channel and choosing the “Copy Link” option there.

Current Update: 25/08/2026 08:51:00 AM – Microsoft has determined that a recent update intended to improve the data pathways leveraged to facilitate channel link generation is causing the affected links to be malformed, leading to impact. They have developed a fix to resolve this issue, and we’re initiating deployment of this fix to the impacted service environments.

Scope of impact: Users joining channels or generating channels links using the “Copy Link” options within the three dots menu located at the top right of shared Microsoft Teams channels may be impacted.

Root cause: A recent update intended to improve the data pathways leveraged to facilitate channel link generation is causing the affected links to be malformed, leading to impact.

Next update by: Friday, August 28, 2026, at 9:00 PM UTC