Empty ShipToCode/BillToCode?

Hello,

I've the following problem:

I try to import orders using a file-adapter. This orders may have addresses that are not in the BP Master Data. This means, we have to empty the ShipToCode and/or BillToCode and write our address to the Address or Address2-field.

Inserting the values to the Address/Address2-fields works perfect, but do not know how to empty the ShipToCode/BillToCode. If the Reciever-Payload does not hold a value for this fields, the system always uses the defaulf value from the BP Master Data.

Best regards,

Thomas