To dispute a Walmart deduction, log in to Retail Link, open the Accounts Payable Deduction Portal (APDP), find the deduction using its code and invoice number, attach supporting evidence, and submit the dispute for review. Approved disputes reverse the deduction and restore the withheld payment.
What Is a Walmart Deduction Dispute?
A Walmart deduction dispute is a formal request submitted through APDP asking Walmart to reverse a deduction applied to a payment. Deductions are withheld directly from the amount owed to the supplier, so a dispute is effectively a claim to recover that withheld amount.
Each dispute is tied to one specific deduction, identified by its code, invoice number, and PO number. It must include a clear reason for the reversal along with supporting documentation, since APDP does not accept disputes without evidence attached. Walmart typically sets a limited window for filing after the deduction date, so timing matters as much as documentation.
Once submitted, Walmart reviews the dispute and issues one of three outcomes: full reversal, partial reversal, or denial. A full reversal returns the entire deducted amount, a partial reversal returns a portion based on the evidence provided, and a denial leaves the deduction as originally issued.
How to Dispute a Walmart Deduction: Step by Step
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Find the deduction. Locate it in APDP or on your remittance advice (EDI 812). Note the code, amount, and invoice number.
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Check the deduction code. Match the code to its category using the Walmart Deduction Codes guide.
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Confirm it's disputable. Only dispute deductions you can prove are inaccurate.
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Gather evidence. Attach proof of delivery, invoice, PO, or return records based on deduction type (see table below).
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Submit in APDP. Select the deduction, choose "Dispute," add a specific explanation, attach documents, and submit. Full walkthrough in the Walmart APDP Guide.
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Track the status. Statuses include Pending, Under Review, Supplier Action Required, Approved, and Denied.
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Respond to action requests. Answer with the exact documentation Walmart asks for, on the same case.
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Appeal if denied. Resubmit with new or stronger evidence, referencing the original case number.
Evidence Needed by Deduction Type
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Deduction Type
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Required Evidence
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Shortage
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Proof of delivery, bill of lading, ASN
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Pricing discrepancy
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Purchase order, signed invoice
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Compliance / OTIF
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Delivery appointment records, carrier scan data
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Allowance
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Signed allowance agreement, invoice showing allowance
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Return
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Return authorization, proof of return receipt
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Post-audit claim
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Original invoice, proof of payment
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Where Do Walmart Deductions Come From?
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Shortages — quantity received doesn't match invoice
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Pricing discrepancies — PO price doesn't match invoice price
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Compliance charges — tied to SQEP and OTIF performance
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Allowances — promotional or trade terms not applied correctly, see Walmart Allowance
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Returns — authorized or unauthorized returns, see Walmart Returns
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Post-audit claims — issued after third-party review, see Walmart Post-Audit Claims
Why Walmart Deduction Disputes Get Denied
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Wrong deduction code selected
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Missing or incomplete evidence
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No proof of delivery for shortage claims
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Invoice number doesn't match the deduction
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Generic or vague explanation
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Dispute filed against a valid, accurate deduction

How to Reduce Walmart Deductions
Reducing deduction volume matters more than disputing after the fact, since prevention saves the time and cost of filing disputes at all. The biggest lever is delivery compliance. Meeting on-time, in-full delivery windows and following packaging and labeling standards directly reduces compliance related deductions, which are among the most frequent categories suppliers see.
A few other practices also lower deduction volume over time:
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Confirm PO and invoice prices match before the invoice is submitted, since pricing mismatches trigger automatic deductions.
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Verify allowance terms are reflected correctly on every invoice line rather than assumed from the original agreement.
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Check ASN accuracy against actual shipped quantities to reduce shortage claims.
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Review return authorization records regularly so return related deductions can be caught and questioned early.
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Track deduction trends by code over time to identify recurring root causes instead of treating each deduction as isolated.
Suppliers that address root causes typically see a steady drop in deduction volume over several months rather than an immediate change, since compliance improvements take time to reflect in Walmart's scoring.
FAQ
Where do I dispute a Walmart deduction?
In Retail Link, through the Accounts Payable Deduction Portal (APDP).
What is Walmart APDP?
APDP is Walmart's portal for viewing, disputing, and tracking supplier deductions.
How do I find my Walmart deduction code?
The code appears next to the deduction in APDP and on the EDI 812 remittance advice.
Can I dispute a Walmart deduction after the deadline?
Disputes filed after Walmart's window typically aren't accepted, so file as soon as the deduction appears.
Can Walmart deduction disputes be automated?
Yes. iNymbus automates deduction lookup, evidence matching, and APDP submission for suppliers with high deduction volume.