Users may be unable to see the suggestions pills after receiving a bot response in Microsoft 365 Copilot Chat

Title: Users may be unable to see the suggestions pills after receiving a bot response in Microsoft 365 Copilot Chat User impact: Users may have been unable to see the suggestion pills after receiving a bot response in Copilot Chat. Final status: Our service telemetry has alerted us to an issue in which users may have been unable to see the suggestion pills after receiving a bot response in Copilot Chat. We've determined that an internal drill that tests the resiliency of our service caused this impact. We've halted this impacting drill and confirmed with our service telemetry that impact is remediated. Scope of impact: Users who attempted to see the suggestions pills after receiving a bot response in Copilot Chat may have been impacted by this event. Start time: Wednesday, September 9, 2026, at 6:20 PM UTC End time: Wednesday, September 9, 2026, at 7:30 PM UTC Root cause: An internal drill that tests the resiliency of our service caused this impact. Next steps: - We're reviewing our internal drill procedures to better identify the potential for impact to suggestion pills in Copilot Chat prior to beginning the drill, so that we can prevent similar impact in the future. This is the final update for the event.