Teams add-in not showing in Outlook Desktop App, have tried troubleshooting articles

Question

Hi, all,

My coworker's Teams add-in is not working on her Outlook desktop app. We have uninstalled and reinstalled Microsoft 365 apps completely, and also confirmed that her apps are all up to date. I have already followed the guidance I can on Resolve issues with Teams Meeting add-in for Outlook - Microsoft Teams | Microsoft Learn, however, the manual step does not work. The command "%LocalAppData%\Microsoft\TeamsMeetingAddin" does not work possibly because her "TeamsMeetingAddin" folder actually has a dash in it, and gave an error code about how the specified module cannot be found.

Also, the Teams Meeting add-in does not show up in the list of active applications, and the Teams Meeting Add-in in the Disabled Application Add-ins list does not show up.

The guidance here: Teams Meeting add-in is missing in Outlook Desktop after updating to New Teams - Microsoft Support also cannot be followed since the Teams Meeting Add-in does not show up.

Her Microsoft Teams version 24243.1307.3125.3317. The (Teams) client version is 49/24081700421. Her Outlook is Version 2409 (Build 18025.20058 Click-to-Run), and is new Outlook.

What are other steps we can try to get the Teams add-in on her Outlook desktop app, or can someone share what I am missing?

Answer 1

To resolve the issue with the Teams Meeting add-in not working in Outlook, you can try a few additional steps. First, ensure that Microsoft Teams is set as the default chat app for Office. In Teams, go to Settings > General and check the option to "Register Teams as the chat app for Office," then restart both Outlook and Teams. Next, manually check if the Teams Meeting add-in is enabled. Open Outlook, go to File > Options > Add-ins, and at the bottom, select COM Add-ins and click Go. If the Teams Meeting Add-in for Microsoft Office is listed but unchecked, tick the box and click OK. Additionally, check if the add-in has been disabled. In Outlook, go to File > Options > Add-ins, and under Manage, select Disabled Items and click Go. If you see the Teams Meeting add-in listed there, enable it. This should help resolve the issue if the add-in was mistakenly disabled or unchecked.

Answer 2

Hi @Colleen-8898

According to your case description, the Teams add-in is not displayed correctly in Outlook.

First, let's troubleshoot the impact of the dash. Please manually navigate to "%LocalAppData%\Microsoft\TeamsMeetingAddin" and find the folder. If this folder still has a dash, please rename it to manually remove the dash, and then repeat the manual repair steps.

If there is no such folder, you need to re-download and install Outlook, or use the Office repair program.

If you still don't see the Teams Meeting add-in, make sure that it's enabled in Outlook.

• In Outlook, select File > Options.
• In the Outlook Options dialog box, select the Add-ins tab.
• Check whether Microsoft Teams Meeting Add-in for Microsoft Office is in the Active Application Add-ins list.
• If the add-in isn't in the list of active applications, and you see the Teams Meeting Add-in in the Disabled Application Add-ins list, select Manage > COM Add-ins, and then select Go.
• Select the checkbox that's next to Microsoft Teams Meeting Add-in for Microsoft Office.
• Select OK on all the dialog boxes that are open, and then restart Outlook.

Finally, if the add-in still does not appear, check the registry settings. If you encounter any problems during the process, please feel free to contact us.

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