Live status of all services Incident · resolved

Some users were unable to see model selection options in Microsoft 365 Copilot chat

Microsoft 365 Copilot Chat CW1507178

Users were unable to see model selection options in Microsoft 365 Copilot chat.

Status
Post-incident report published
Feature
General
Region
Not specified (all regions)
Started
Oct 14, 2026, 05:34 CEST
Resolved
Oct 14, 2026, 11:30 CEST
Duration
5 h 56 min

Message

A post-incident report has been published.

Timeline

Every update Microsoft posted for this issue, newest first.

  1. Oct 16, 2026, 23:33 CEST

    A post-incident report has been published.

  2. Oct 14, 2026, 12:19 CEST

    We’ve verified through service telemetry and previously impacted users that the issue is now resolved.

  3. Oct 14, 2026, 11:56 CEST

    We've completed deploying the fix to the affected infrastructure, and we've verified in our internal environment that the model selection options have been restored within Copilot chat. We're now contacting affected customers directly to ensure the fix has produced the expected resolution.

    This quick update is designed to give the latest information on this issue.

  4. Oct 14, 2026, 11:20 CEST

    We've identified a component responsible for producing the model selection options in Copilot chat was not functioning correctly. To mitigate impact, we've developed a fix which is currently being deployed to the affected infrastructure and we're monitoring this process closely to ensure it delivers the expected resolution.

  5. Oct 14, 2026, 10:13 CEST

    We’re reviewing service monitoring telemetry and support provided information to determine why model selection options aren’t appearing as expected, in order to develop a remediation plan.

  6. Oct 14, 2026, 09:07 CEST

    We've received reports indicating an issue with model selection options in Copilot Chat. We're reviewing service monitoring telemetry to isolate the root cause and determine our next troubleshooting steps.

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