Some users may receive an error when they initiate Microsoft 365 Copilot Chat requests

Title: Some users may receive an error when they initiate Microsoft 365 Copilot Chat requests User impact: Users may have received an error when they initiated Microsoft 365 Copilot Chat requests. More info: The error that impacted users may have received stated "Something went wrong, please try again." Final status: Our investigation determined that the previously mentioned configuration change led to network traffic being incorrectly routed, which led to impact. After reverting this change, we monitored service health telemetry and confirmed impact is remediated. Scope of impact: Some users attempting to initiate Microsoft 365 Copilot Chat requests may have been impacted. Start time: Wednesday, July 29, 2026, at 10:45 PM UTC End time: Thursday, July 30, 2026, at 1:15 AM UTC Root cause: A recent configuration change led to network traffic being incorrectly routed, which led to impact. Next steps: - To help prevent similar impact in the future, we're further reviewing the underlying reason this configuration change let to network traffic being incorrectly routed. This is the final update for the event.

Title: Some users may receive an error when they initiate Microsoft 365 Copilot Chat requests User impact: Users may receive an error when they initiate Microsoft 365 Copilot Chat requests. More info: The error that impacted users may receive states "Something went wrong, please try again." Current status: We've been alerted to an issue where some users may receive an error stating "Something went wrong, please try again." when they initiate Microsoft 365 Copilot Chat requests. While we investigate the issue to confirm the underlying root cause, we're preparing to revert a recent configuration change, which we're anticipating may be able to restore service for affected users. Scope of impact: Some users attempting to initiate Microsoft 365 Copilot Chat requests may be impacted. This section may be updated as our investigation continues. Start time: Wednesday, July 29, 2026, at 10:45 PM UTC Next update by: Thursday, July 30, 2026, at 2:30 AM UTC