Have there been cases where Team Members are being removed for no reason, (possibly inactivity)
Currently im using Teams 'Shifts' scheduling and some members only use teams for this purpose, I would not want anyone to be booted from a Team due to inactivity. Possible that something else is going on?
The reason can be users being disabled in Office 365/Azure AD, or an access review was initiated for the Group/Team, etc. In all cases, looking at the Audit logs should give you the reason why a given user was removed.
Best Response confirmed by
Samuel_Eng (New Contributor)