Some of our customers have a mandatory requirement in MARLO that they have to enter a PO number. If they do not enter a PO number, the order cannot be triggered in MARLO. Some customers in SAP have automatic PO generation and it seems that MARLO enables it in a way that they have to enter it before ordering. In this case, please make it OPTIONAL and not MANDATORY since it blocks orders for some customer who do not have an idea what a PO is or what to enter. Thanks