Admins may experience authentication issues or errors preventing access to the Microsoft Teams CQD

Title: Admins may experience authentication issues or errors preventing access to the Microsoft Teams CQD User impact: Admins may have experienced authentication issues or errors preventing access to the Microsoft Teams CQD. More info: This issue produced 400 errors or authentication problems for any admin, preventing their access to the Microsoft Teams Call Quality dashboard (CQD). Final status: Following the deployment of our fix, we've validated with affected admins who confirmed the authentication issues and errors that had prevented access to the Microsoft Teams Call Quality dashboard have subsided, and that the impact has been remediated. Scope of impact: This issue produced 400 errors or authentication problems for any admin, preventing their access to the Microsoft Teams Call Quality dashboard. Start time: Friday, July 24, 2026, at 9:06 PM UTC End time: Wednesday, August 5, 2026, at 12:18 AM UTC Root cause: A recent service update intending to improve service authentication produced an impacting token refresh issue that prevented admins' access to the Microsoft Teams Call Quality dashboard. Next steps: - We're further analyzing the offending service authentication update to help us improve our pre-deployment testing and validations. This is the final update for the event.

Title: Admins may experience authentication issues or errors preventing access to the Microsoft Teams Call Quality dashboard User impact: Admins may experience authentication issues or errors preventing access to the Microsoft Teams Call Quality dashboard. Current status: We've identified a recent update to service authentication that is producing an impacting authentication token refresh issue that's preventing admins' access to the Microsoft Teams Call Quality Dashboard. We're developing a fix to address the offending token refresh and to remediate the impact. We'll provide an updated timeline for our fix deployment once our internal testing and validations have completed. Scope of impact: This issue may produce 400 errors or authentication problems for any admin, preventing them access to the Microsoft Teams Call Quality dashboard. This information may be updated as our investigation continues. Start time: Friday, July 24, 2026, at 9:06 PM UTC Root cause: A recent service update intending to improve service authentication has produced an impacting token refresh issue, preventing admins' access to the Microsoft Teams Call Quality dashboard. Next update by: Thursday, August 6, 2026, at 12:00 AM UTC