Some users see additional Microsoft 365 Copilot Chat agents available to use

Title: Some users see additional Microsoft 365 Copilot Chat agents available to use User impact: Users may have seen additional Copilot Chat agents available to use. Final status: We've determined that a recent Copilot Chat service update contained a misconfiguration for returning available agents, resulting in impact. We've reverted the update and confirmed that the additional agents are no longer appearing as available to use. Scope of impact: This issue may have affected any Copilot Chat user. Start time: Monday, March 9, 2026, at 3:30 AM UTC End time: Monday, March 9, 2026, at 6:08 PM UTC Root cause: A recent Copilot Chat service update contained a misconfiguration for returning available agents, resulting in impact. Next steps: - We're reviewing our update testing and validation process to better detect issues such as this prior to deployment as to prevent similar future occurrences. This is the final update for the event.

Title: Users may see additional Microsoft 365 Copilot Chat agents available to use User impact: Users may see additional Copilot Chat agents available to use. More info: The agents are labeled as "bizchat-as-gpt-scenario" and "cwc-as-gpt-scenario." Current status: We've identified a change to the service that potentially introduced this problem and have rolled it back. We've asked a subset of users to test and confirm that this resolved the issue. Scope of impact: This issue may affect any Copilot Chat user. Next update by: Tuesday, March 10, 2026, at 10:00 PM UTC

Title: Users may see additional Microsoft 365 Copilot Chat agents available to use User impact: Users may see additional Microsoft 365 Copilot Chat agents available to use. More info: The agents are labeled as "bizchat-as-gpt-scenario" and "cwc-as-gpt-scenario." Current status: We're investigating a potential issue with Microsoft 365 Copilot Chat and checking for impact to your organization. We'll provide an update within 60 minutes.