Diagnosis
If you make this change, the system will change the contract from avalue contract to a quantity contract.
The current contract is OTB-compulsory, which means that an internalcontract apportionment exists.
The internal contract apportionment for value contracts only containsone value per period. This is because, for value contracts, all relevantitems are assigned to the same OTB buckets per period.
In the internal contract apportionment for quantity contracts, on theother hand, different OTB buckets can be assigned to the contract perperiod.
If a contract is changed from a value to a quantity contract, a datainconsistency results between the contract type and the correspondinginternal apportionment. This will cause problems in subsequentprocessing.

Procedure
Do not change the target value from a number greater than zero to zeroor from zero to a number greater than zero.