SAP Message 5M606 - The 'assurandørstatistik' only permits work contract 1

Diagnosis
You have indicated the employee as being an insurance agent, whichmeans that the employee participates in the separate statistics forinsurance agents ('assurandørstatistik').
In these statistics, only work contract 1 is permitted, however, youhave specified a different work contract.

System Response
The entry is not accepted.

Procedure
Either amend the work contract or remove the indicator forparticipation in the insurance agent statistics.