Accomodate landed cost in the price List lof an item

hi,

The requirement   for an Implemenation project(11i) for an inventory transaction is to include additional cost(Letter of Credit, bank Charges) in the price list of an item  incurred  during the purchase of it.

We were able to capture the additional information and apportionment of additional expenses through customisation of forms. But we need the receiving transaction processor(Standard program in Inventory) to pick the updated amount from the custom tables instead of picking it from PO table. As a result we should get only updated price in the susequent transactions and forms.

if anyone have any suggestions/workaround please help us in achieving it.