issue with BAPI_CONTRACT_CHANGE

Hi,

I've found thread with similar issue but without any resolution.So posting same kind of question again.I'm using BAPI_CONTRACT_CHANGE to change the Amount value of the Condition Supplements(From Item->Condition)of transaction ME32K.After executing the BAPI in SE37 I'm getting the below log in RETURN Table:

S BAPI                 002 Instance 4600000000 of object type PurchasingContract has been changed.

S 06                   023 Quantity Contract 4600000000 changed

W MEOUT                018 No message generated for output of purchasing document

I ME                   664 Change NETPR could not be effected

And have found from ME33K that the Amount value of the Condition Supplements doesn't change.If anybody have gone through with similar issue,then please share the way you solve it.

Thanks in advance.

Regards,

Sarbajit Majumdar