teams add-in not showing

Hi @Kit Erceg,

Thank you for taking the time to share your findings and the incident information.

Based on the details you've provided, this appears to match a recently identified issue where the Teams Meeting Add-in is installed and enabled but does not appear in the Classic Outlook ribbon, preventing users from scheduling Teams meetings directly from Outlook.

Microsoft has identified the cause of the issue and is currently deploying a fix. According to the latest information available, the fix is expected to become broadly available in an upcoming release, currently targeted for around July 3, 2026.

While the fix is being rolled out, affected users can continue scheduling Teams meetings using:

• New Outlook for Windows
• Microsoft Teams desktop application
• Microsoft Teams on the web

Thank you again for sharing this information with the community. It will likely help other users experiencing the same behavior understand that the issue is currently under investigation and not necessarily related to their local configuration.

Wishing you all the best, and hopefully the upcoming update resolves the issue for your users.

Kind regards.

I have just seen MS incident TM1402778 - Users may be unable to schedule Microsoft Teams meetings through the classic Outlook desktop client. This may be the issue @Jaison P Thomas !

Impact is specific to Microsoft Teams version 26149.1205.4798.6437. The Teams Meeting add-in appears to be installed and enabled in classic Outlook; however, it isn't being displayed, preventing affected users from scheduling Teams meetings directly from the Outlook ribbon.

Dear @Jaison P Thomas,

I hope you’re having a good day.

I understand that the Teams add-in is not appearing in Outlook, even after you have already performed several troubleshooting steps.

To help better understand the issue, could you please provide:

• A screenshot showing where you expect the Teams add-in to appear, but it is missing. For example, if the Teams Meeting button is missing from the Outlook Calendar ribbon, please capture that area of the Outlook window.
• A brief summary of the troubleshooting steps you have already tried.

In the meantime, you can perform the following checks and let us know the results:

1. Verify that Microsoft Teams is running

• Completely close both Outlook and Microsoft Teams.
• Open Microsoft Teams and sign in with the same work or school account used in Outlook.
• Leave Teams running.
• Open Outlook and check whether the Teams Meeting button appears.

2. Check whether the Teams add-in is enabled

• In Outlook: File > Options > Add-ins
• At the bottom: COM Add-ins > Go
• Verify that: Microsoft Teams Meeting Add-in for Microsoft Office is listed and checked.

3. Check whether Outlook disabled the add-in

• In Outlook: File > Options > Add-ins
• At the bottom: Disabled Items > Go
• If the Teams add-in appears there, re-enable it and restart Outlook.

4. Update Outlook and Teams

Make sure both applications are fully updated:

• Outlook > File > Office Account > Update Options > Update Now
• Teams > Settings > About Teams > Check for updates

5. Uninstall and then reinstall Teams:

This includes removing Microsoft Teams as well as Teams Machine‑Wide Installer, if it is present. After that, reinstall Teams and restart Outlook.

Additionally, Microsoft notes that after updating to the new Teams, the meeting add‑in may be missing until Teams re‑installs it properly. Their recommended workaround is to remove the Teams Meeting Add‑in entry (if it exists), fully close both Teams and Outlook, and then restart the new Teams so it can re‑add the add‑in automatically.

You can find Microsoft’s reference here: Teams Meeting add-in is missing in Outlook Desktop after updating to New Teams.

6. Check ribbon settings:

If the add‑in exists but the Teams Meeting button is still not visible, please verify that the Outlook ribbon has not been customized in a way that hides it. Also, ensure the ribbon is fully shown and not collapsed or hidden.  

Please understand that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.  

I hope this information helps point you in the right direction. If you run into any issues while trying the steps, or if something still doesn’t feel quite right, please don’t hesitate to reach out again. I’ll do my best to support you however I can.  

Looking forward to hearing back from you with any updates or additional details. 

Warm regards, 

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