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Chris1232's avatar
Chris1232
Copper Contributor
Jan 02, 2026

Copilot Chat missing in Outlook Web and Outlook Classic

Hello, since recently we are experiencing a tenant wide issue with Microsoft Copilot Chat in Outlook. Environment: Microsoft 365 Business Premium Microsoft 365 Copilot Chat enabled Copilot Chat...
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Surya_Narayana's avatar
Surya_Narayana
MCT
Jan 11, 2026

hi Chris1232​ Thanks for sharing this, you’re not alone. We’re seeing very similar behavior in a few tenants as well. Given that Copilot Chat works in other M365 apps and is missing tenant-wide in both OWA and Outlook Classic, this strongly points to a service-side or rollout-related issue, rather than licensing or configuration. Especially since there were no policy or admin changes and OWA is affected, local client settings can likely be ruled out.

Over the past few weeks, Microsoft has been adjusting how Copilot surfaces in Outlook, including differences between:

  • Outlook Web vs Classic vs New Outlook
  • Sidebar Copilot vs inline Copilot experiences
  • Gradual feature flag rollouts per tenant and region

It wouldn’t be surprising if this is tied to a temporary regression or backend feature flag change specific to Outlook.

At this point, the best next step is usually:

  • Open a Microsoft 365 support ticket referencing a tenant-wide Copilot Chat disappearance in Outlook (OWA + Classic)
  • Ask support to check Copilot feature flags and service health for your tenant

It would be helpful if others can confirm whether they’re seeing the same thing, especially across different regions or license types. If multiple tenants are impacted, that should help get faster visibility from Microsoft.

 

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