Field help (BPCVDTAAMT) 

These are the information relative to the invoicing footer. The invoicing elements correspond to the category of customer used or to the elements set up to be displayed on the customer record if no category has been associated to the customer.
When the invoicing elements come from a setup with a default value, this value is used and converted into the customer's currency using its rate type and the current date of the system (datesyst).