OSN Supplier was able to invoice punchout orders via iSupplier portal
we have OSN supplier setup for 3 suppliers with XML setup for PO/invoice and we also have isupplier invoices being created for other suppleirs. However we see OSN Supplier was able to invoice punchout orders via iSupplier portal. Could you please help me find a way to prevent isupplier invoices being created for the OSN suppliers. Thanks.