Scenario:
Unable to setup a Supervisor for a user as system throws up the below given error messages,
* Supervisor entry cannot be blank.
* Supervisor cannot be empty.
* Supervisor must not have overlapping values.

Cause:
This usually happens if there is an extra row in the Supervisor section of the user profile, with no information in it. The extra row may have been created by accidentally clicking on the Add Supervisor button. (Refer attached image)

 

Resolution:
This can be fixed by deleting the unused or extra empty row. The system expects some value if there is a row and will throw up an error if there is no value in the extra row.