E1 9.1 Poland Localization - P74P411H A/P Additional Information

Hi Community -

We are implementing E1 in Poland and can successfully use the A/P Additional information program (P74P411H) to change the Tax Liability date for standard vouchers.  How can we use the same functionality for PO Matched vouchers?  The voucher does not appear in the list when use the above program to inquire.  The Document Type is PV (the same as for standard vouchers).

Any advise is greatly appreciated.

Thanks,

Amy