Code 13

How to Fix Walmart Deduction Code 13: Substitution Overcharge

Code 13 deductions occur when a supplier invoices for one item number, but Walmart receives a different item number. This discrepancy is often identified when the invoiced item's cost is higher than the merchandise received. Common root causes include incorrect item numbers or UPC fields on invoices, premature EDI invoice generation before order fu...

Root Causes of Code 13
  • •Code 13 deductions occur when a supplier invoices for one item number, but Walmart receives a different item number
  • •This discrepancy is often identified when the invoiced item's cost is higher than the merchandise received
  • •Common root causes include incorrect item numbers or UPC fields on invoices, premature EDI invoice generation before order fulfillment, unapproved product substitutions to meet shipping deadlines, and receiving errors where merchandise is misapplied to the wrong PO or items are misidentified due to ambiguous packaging
Required Documents for Dispute
  • Bill of Lading showing correct items shipped (if it includes individual product/UPC-level information)
  • a copy of the Invoice (EDI 810) to show what product was shipped
  • Proof of Delivery showing items received
Step-by-Step Dispute Process
  1. 11. Gather supporting documentation: Obtain the Bill of Lading (showing correct items shipped, ideally with UPC-level detail), a copy of the EDI 810 Invoice (to confirm billed products), and Proof of Delivery (to confirm received items).
  2. 22. Access the Accounts Payable Disputes Portal in Retail Link.
  3. 33. Initiate a dispute for Code 13, attaching all gathered supporting documentation.
  4. 44. Note that disputing Code 13s is generally difficult, and Walmart rarely grants paybacks for this code. Walmart advises against contacting buyers for this claim code.
How to Prevent Code 13 in the Future
  • Review POs before shipping to catch discrepancies early
  • Maintain detailed records of all buyer communications
  • Implement automated PO validation
  • Keep dispute logs to identify recurring issues
Frequently Asked Questions

How long does it take Walmart to process a Code 13 dispute?

Walmart typically reviews Code 13 disputes within 30-45 days through the Accounts Payable Disputes Portal. If denied, escalate to your buyer immediately with supporting documentation.

Can I prevent Code 13 deductions before they happen?

Yes. Implement pre-shipment PO validation, maintain detailed records of buyer communications, and work with your EDI provider to ensure correct processing. Keep a dispute log to identify recurring issues.

What's the success rate for Code 13 disputes?

Code 13 disputes have varying success rates (40-70%) depending on documentation quality. Disputes succeed when you provide complete proof that the deduction was invalid.

Related Walmart Deduction Codes
📦 FREE DOWNLOAD

Get the Monday Morning Defense Kit

Pre-written appeal templates for the 10 most common Walmart deduction codes. Download instantly and start recovering your money today.

Need Help Recovering Your Money?

NWA Automated specializes in helping Walmart suppliers automate dispute tracking and recover deductions faster. Let us handle the paperwork while you focus on growing your business.