Diagnosis
The operator represents die joint venture company.
In the global company code data that is specific to joint ventures, nooperator for company code &V1& has been defined.

Procedure
Enter the operator for company code &V1&.
In Customizing for Joint Venture Accounting, choose Environment -> JVA Company Configuration -> Gobal Data.
Select company code &V1&.
Enter the operator. Note that you must first create the operator as acustomer.
Save your entries.