Installment Recalculation in the Payment Process Request

Hello,

We have the following scenario: I am creating a payment process request, but some invoices have not been selected for payment because they have not been approved for example. Currently, if this happens, we do the necessary action on the invoices, terminate the payment process request, and recreate it.

Is there a way to recalculate the selected invoices without terminating the PPR? Which is the best practice to recalculate installment selection on PPR?

Thank you

Giulia