Missing Teams calendar plugin for Outlook & how to fix it:
If your Teams calendar plugin for Outlook is missing it can be uninstalled and reinstalled. First off, make sure Outlook is closed all windows. Make sure to log off the Teams desktop app. (Navigate to the following):
- Type Settings in the search box.
- Click Apps then click Installed Apps.
- In the search box, type Teams. Click the Ellipsis (…) for the Microsoft Teams Meeting Add-In for Microsoft Office.
- Once the Outlook/Teams plugin has been uninstalled Log into Teams again. The Outlook plugin will automatically install again.
- Open Outlook again and the Teams Calendar plugin will load again. Click on the Calendar in Outlook.