An XML message can send a tax amounts in the following ways. One XML message can include both ways:

• as its own tax line

• as part of an invoice line

If the message has a separate tax line, the map creates it as a Tax line in the interface. Payables Open Interface Import then allocates that Tax line to all taxable Item lines on the invoice. Note that tax allocation is to Item lines only.

If a tax amount is included as part of an invoice line, then the map breaks the line into two lines -- one Item line and one Tax line. The map also populates each line with the same value in AP_INVOICE_LINES_INTERFACE.LINE_GROUP_NUMBER to ensure that the allocation of the Tax line is to the single Item line.

Invoice Validation will validate tax amounts and will apply holds to the invoice if necessary.