Payables Integration into EAM

We use procurement cards and we want to collect/track charges that have been incurred on the P-Card against a work order in EAM back to the work order that was responsible for the charge being incurred. Is there anyway to do this. If we enter a PO we can collect the cost to a work order, however, in AP we don't see anyway to link the invoice line to the work order. Anyone have any ideas?