SAP Message 0D015 - Contract account &1 can include just one insurance object (acct cat. &2)

Diagnosis
You cannot assign multiple legal relationiships tocontract accounts in categoryV2.

System Response
Assignment cannot take place.

Procedure
Check the contract account number. If you want to assign the legalrelationship entered and the legal relationship assigned to thecontract account entered to the same contract account, you must firstassign them to an existing or still to be created contract account in adifferent category.