Diagnosis
Relevancy to billing &V1& is not allowed for BOS types for which aflat-rate price contract form has been defined.

Procedure
Change the relevancy to billing. You can choose the following valuesfor a flat-rtae price contract:
' ',, Not relevant to billing
'B',, Resource-related billing - status depending on order quantity
'I',, Resource-reltaed billing - billing plan
If you do not wish to change the relevancy to billing, you must choosea different BOS type with unit price contract.