Commercial Card Payments and Purchase Orders

Separate the purchasing record from the payment

A buyer may approve the purchase internally with a purchase order and pay it with a commercial card. Keep the buyer’s PO reference, your invoice, and the provider’s transaction identifier in separate fields. The buyer can then match the charge to the correct order even if the invoice has multiple shipments.

Check what purchasing data your provider accepts

• Confirm which purchase references, tax amounts, and item details your integration can transmit.
• Ask whether data fields apply to the cards, channel, and account you expect to use.
• Agree on who corrects discrepancies between a buyer’s purchase order and your invoice before submitting payment.

Review one full invoice cycle

Run an approved test order with the required references and compare what appears in the store, gateway, and buyer-facing receipt. For partial shipments or credits, preserve the original PO relationship. Avoid representing data submission as a promise of any specific card fee or pricing treatment.