No Calendar Icon In Teams. Calendar app missing in teams. Follow this guide to turn on the ms teams calendar again.
So i have seen this in two different tenants in two different customers. There could be an issue with your teams application that could be preventing you from viewing the calendar.
Go To Your Calendar In Teams.
As you don't see calendar icon in the teams desktop app, to isolate if it is related to your desktop app, please try to sign in your teams web app (.
Sign In To Microsoft Teams Admin Center As A Microsoft Office 365 Administrator.
After signing in, go to teams apps > setup policies.
Close Microsoft Teams (Check Out If Appears In Windows Toolbar And Close It).
Images References :
As You Don't See Calendar Icon In The Teams Desktop App, To Isolate If It Is Related To Your Desktop App, Please Try To Sign In Your Teams Web App (.
Close microsoft teams (check out if appears in windows toolbar and close it).