Hi @Roger Roger
Do you mean the Teams meeting icon is grey in your outlook client?
Can you schedule Teams meeting in Outlook web client like the following picture?
If you have installed the add-in, check your Regedit and make sure the LoadBehaviour is set to "3":
Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Addins\TeamsAddin.FastConnect
In addition, it recommends you check your tenant is in the right coexistence mode. You cannot schedule Teams meeting if your mode is SFBWithTeamsCollab and SFBOnly. For more details about each mode, you can refer to:
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