Deferred expense for invoice submitted from supplier portal with 3 way match

Hi,

We would like to have those prepayment/expense over multiple period to be charged to prepayment account before it goes to expense account.

Our invoices are submitted from supplier portal. With 3 way matches - invoices are approved and ready for payment automatically. AP user will not know there is an invoice over multiperiod period being inputted in this case(even we check on big amount item 1 by 1, it already being posted to expense account but not prepayment a/c), and there is no way for us to extract/identify those invoices from system.

Any suggestion how to handle this kind of process? Can PR(purchase requisition) requester input the service period when perform goods/service receive , and carry this information to the invoice match?