When a newly created analyst user clicks on the Accept button to assign a Task to them self, it is possible that they will be blocked by an error resembling this one:
OwnerTeam of Task: Field value must be provided
Owner of Task: <loginid> is not in the validation list
This error indicates that the user needs to be assigned to a Team.
Even if their Employee record is linked to one or more Teams, they need a main Team defined on the Details tab.