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Microsoft Teams Support
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New MRCA Diagnostic: Teams Meeting Add-in For Classic Outlook

Carlos Farrica's avatar
Apr 23, 2026

Hi Teams Community,

We're back with another great addition from Christopher Tart​ to Support Diagnostics for Microsoft Teams. We're excited to share that the

Teams Support team has added a new diagnostic to the Microsoft Remote Connectivity Analyzer — the Teams Meeting Add-in For Classic Outlook diagnostic.

If you manage Teams in your organization, you've likely seen this scenario come through your support queue more than once: a user opens classic Outlook to schedule a meeting and the Teams Meeting button is simply nowhere to be found.

This new diagnostic is here to help you quickly pinpoint what's blocking the add-in — whether it's a policy misconfiguration, a licensing gap, or a coexistence mode that's incompatible with the Teams add-in.

 

Some common symptoms this diagnostic helps you troubleshoot:

  • The Teams Meeting button is missing from the Outlook ribbon
  • The Teams add-in doesn't appear in Outlook's list of COM add-ins
  • Users are unable to schedule a Teams meeting directly from Outlook
  • Only the Skype Meeting option appears in Outlook, with no Teams option in sight

 

To access the new diagnostic, navigate to Microsoft Remote Connectivity Analyzer, select Microsoft Teams, then click on Teams Meeting Add-in For Classic Outlook.

You'll need to sign in with a Teams account to run the test. Once authenticated — the diagnostic will then validate that user's configuration end to end.

 

At a high level, the test checks a couple of things:

  • The user is licensed for Microsoft Teams
  • The Teams Outlook add-in policy is enabled (TeamsUpgradePolicy / Teams meeting policies)
  • The user's coexistence and upgrade mode is compatible with the Teams Meeting add-in — users set to Skype for Business Only mode will not see the Teams add-in in Outlook
  • The Teams desktop client is installed and signed in on the user's machine
  • Exchange Online or on-premises connectivity is verified to confirm Outlook can reach Teams for meeting scheduling
  • Admin policies that may be suppressing the add-in are flagged (e.g., Outlook add-in management policies)

For more information, check out these resources:

 

Please give the new diagnostic a try — and let us know if it helped!

Thanks! Microsoft Teams Support

Published Apr 23, 2026
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