Teams Meeting add-in in Outlook for Windows not working

Hello @Joy Kulappura,

Thank you for sharing the details of your issue.

I’ve reviewed the situation, and I want to assure you that this problem is not caused by anything on your side. It has been identified as a service incident by Microsoft and is currently being addressed.

Here is the official information:

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Title: Some users may be unable to schedule Microsoft Teams meetings through the classic Outlook desktop client

Summary of Impact: Some users running Microsoft Teams version 26149.1205.4798.6437 are unable to schedule Microsoft Teams meetings from the classic Outlook desktop client. Although the Teams Meeting add-in appears installed and enabled, it does not display in the Outlook ribbon, preventing direct Teams meeting creation from Outlook. Users with access to the new Outlook client or Microsoft Teams desktop/web apps can still schedule meetings using those alternatives while the issue is being remediated. The incident remains active and is classified as a service degradation (Severity 2).

Current status: We're continuing to expect that the deployment will be complete by the end of Friday, July 3, 2026. Following deployment, we will closely monitor the affected environments over an extended period to confirm that impact has been fully resolved.

Estimated time to resolve: Friday, July 3, 2026

Root cause: A recent service update introduced an incompatibility affecting how the Teams Meeting add-in identifies the appropriate Teams client during initialization in newly configured Outlook environments impact, resulting in impact.

Next update by: Monday, July 6, 2026, at 11:00 AM UTC

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Regarding this issue, since it appears to be related to a broader service incident, you may also consider reaching out to your IT administrator. They will be able to review the latest updates through the Microsoft 365 Service Health Dashboard and, if necessary, engage Microsoft Support for further backend investigation.

As a temporary workaround, Microsoft has indicated that users who have access to New Outlook or the Microsoft Teams desktop application/web may continue using those platforms for creating and managing Teams meetings until the issue has been fully resolved.

Additionally, you may consider submitting feedback directly from within the application. This helps the product team better understand the impact from the user perspective and prioritize improvements. You can typically do this by selecting the "Help" option and then choosing Feedback.

This can help increase visibility of the issue and ensure it is properly captured by the engineering team.

I’m truly sorry for the inconvenience this has caused. Please rest assured that Microsoft engineers are actively working to resolve the issue as quickly as possible. I appreciate your patience, and please feel free to update me if there are any changes or if you need further assistance.

Warm regards,

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Hi my name is Okunlola Adeniyi Enoch

if the Microsoft Teams Meeting add-in is missing in Outlook, it is usually caused by the add-in being disabled, an outdated version of Teams or Outlook, or a problem with the Teams installation.

Try the following:

• Restart both Outlook and Microsoft Teams.
• Make sure you are signed in to the same Microsoft account in both apps.
• Check whether the Microsoft Teams Meeting Add-in for Microsoft Office is disabled in Outlook and re-enable it if necessary.
• Update both Outlook and Microsoft Teams to the latest version.
• If the issue persists, repair or reinstall Microsoft Teams, then restart your computer.

Microsoft also provides official troubleshooting steps here:

Troubleshoot the Teams Meeting add-in in Outlook for Windows

If none of these steps work, let us know:

• Which version of Outlook are you using (Classic Outlook or New Outlook)?
• Are you using a personal Microsoft account or a work/school account?
• Which version of Windows are you running?

That information will help identify the cause more quickly.If the Microsoft Teams Meeting add-in is missing in Outlook, it is usually caused by the add-in being disabled, an outdated version of Teams or Outlook, or a problem with the Teams installation.

Try the following:

• Restart both Outlook and Microsoft Teams.
• Make sure you are signed in to the same Microsoft account in both apps.
• Check whether the Microsoft Teams Meeting Add-in for Microsoft Office is disabled in Outlook and re-enable it if necessary.
• Update both Outlook and Microsoft Teams to the latest version.
• If the issue persists, repair or reinstall Microsoft Teams, then restart your computer.

Microsoft also provides official troubleshooting steps here:

Troubleshoot the Teams Meeting add-in in Outlook for Windows

If none of these steps work, let us know:

• Which version of Outlook are you using (Classic Outlook or New Outlook)?
• Are you using a personal Microsoft account or a work/school account?
• Which version of Windows are you running?

That information will help identify the cause more quickly.