Code 30: Duplicate Billing

Overview

Code 30 deductions are triggered when two invoices are submitted for the same goods or purchase order.

A common scenario occurs when an invoice is sent before Walmart receives the shipment. Walmart may issue a Code 25 deduction for 'No Merchandise Received' and close the order. If another invoice is later submitted after the shipment is received, Walmart treats it as a duplicate invoice and issues a Code 30 deduction.

If a valid shipment receives a Code 25 deduction, dispute the Code 25 rather than submitting another invoice.

How to Prevent Valid Code 30 Deductions

• Invoice each order only once.
• If Walmart issues a Code 25 for merchandise that was actually shipped, dispute the Code 25 instead of re-invoicing.
• Review your EDI 810 invoices to ensure they are transmitted only once and only after the goods have been received.

Can It Be Disputed?

Yes. Code 30 deductions can be disputed successfully if you can demonstrate that each invoice relates to a unique order. Submit the dispute through the Accounts Payable Dispute Portal (APDP) in Retail Link.

Supporting Documentation

• Proof of Delivery for each invoice involved in the dispute.
• Collect shipments: Bill of Lading signed by the driver showing the purchase order was picked up in full. The purchase order number should be clearly noted on the document.
• Prepaid shipments: Proof of Delivery showing the purchase order was received in full. The purchase order number should be clearly noted on the document.

Conclusion

Code 30 deductions are generally caused by duplicate invoicing rather than shipping issues. Following proper invoicing practices, transmitting EDI 810 invoices only once, and disputing invalid Code 25 deductions instead of re-invoicing can help prevent duplicate billing deductions. When a Code 30 deduction is invalid, complete shipping documentation for each invoice can help support a successful APDP dispute.