Importing Tax lines with Payables Open Interface

Hello,

I am importing invoices with an XML file with tax lines in it.  The  invoices item lines are matched to Purchase Order and there is a tax line in the file.

The EBTax Defaults and Controls "Applications Tax Options" are set to default the VAT code from the "Reference Document".

I am expecting as a result that the tax line should be associated to the Tax code for which the Purchase Order was entered.

However when importing the invoice, the payable open interace is showing an error as the vat code is missing.

In order to import such an invoice, there is a workaround, which is: