Dear Yolima,
You need to go with User Exit in order to fulfill your requirement. Work with your developer in USEREXIT_NEW_PRICING_VBAP or USEREXIT_SOURCE_DETERMINATION at include MV45AFZB whatever suits you. Apply the logic as
IF VBAP-WERKS NE OLD PLANT.
NEW_PRICING = ' '
Here if you're using RE order type for return then you can also specify the logic based on your this order type and i'm sure that developer would be smart enough to deal with this. Thanks and don't forget to hit back with your findings. Have a good day.
