Is it possible SAP would be able to block a payment (much like if there was a payment block setup) if a payment method and/or banking details are NOT selected?
Payments are going out even if payment methods are not selected. SAP chooses the first banking details under the specific vendor and sends funds out on the due date. There should be a block on all payments if the person setting them up does not choose the payment instruction.
Please let us know if this logic can be applied to SAP.