Abstract: A system is disclosed allowing a buyer to directly build a shopping cart(s) on a supplier's portal (such as website, applications) without initiating any shopping request from company's network or system (such as eProcurement system). A standard cXML document can be used to transmit a Punchout Order Message (POOM) address to a customer system where the POOM can be retrieved. Additionally, a buyer identifier (e.g., an email address) can be included in the cXML document so that the customer system can verify the buyer making purchases. An address is returned to the supplier's portal, which can be used by the buyer to complete the purchase. In one example, the address directs the buyer to log into the customer system to verify the purchase.