How to Dispute Walmart Deductions: A Step-by-Step Guide (June 2026)

Disputing Walmart deductions through the APDP is one of the highest-return actions a supplier finance team can take. This guide covers the full process, from identifying invalid deductions and pulling the right documentation to filing in the Accounts Payable Disputes Portal and handling denials. Know how each deduction type is routed and what documentation Walmart accepts before you file anything.

TL;DR:

• Dispute Walmart deductions through the APDP portal inside Retail Link, using the correct deduction code or your case gets auto-denied.
• AP chargebacks in APDP must be disputed within 15 to 30 days of the posting date. OTIF compliance chargebacks are AR deductions and go through HighRadius, not APDP, with a separate window closer to 30 days from invoicing.
• Weak documentation is the top reason valid disputes get denied. Walmart rejects carrier-generated delivery reports; get the signed POD.
• Denied disputes can be refiled up to 3 times. Resubmitting the same documentation produces the same denial; only new evidence wins a refile.
• Glimpse pairs AI agents with human experts to dispute invalid deductions at scale, maintaining a 91% average recovery rate.

Understanding Walmart Deductions and Why They Happen

Walmart deductions fall into a few broad categories, and knowing which type you're dealing with shapes everything about how you dispute it.

The most common types suppliers encounter are:

• Shortage deductions, where Walmart claims it received fewer units than were invoiced, often tied to carrier discrepancies or receiving errors at the distribution center.
• Price discrepancies, which occur when the invoiced price doesn't match what Walmart has on file, frequently because promotional pricing wasn't updated in the system in time.
• Compliance chargebacks, issued when a shipment violates a Supplier Agreement requirement, such as labeling errors, incorrect pallet configuration, or missed appointment windows. One important distinction: OTIF-related compliance chargebacks are AR deductions that Walmart invoices separately and routes through HighRadius, not APDP. The dispute process in this guide covers AP deductions handled through APDP.
• Freight and routing chargebacks, charged when a supplier uses an unauthorized carrier or deviates from Walmart's routing guide.

Most invalid deductions don't get disputed because suppliers either miss the deadline or write them off as too small to pursue. AI-native deduction management changes that calculus entirely. Shortage deductions allow up to 12 months from the invoice date to dispute. General AP deductions allow up to 24 months. Once those windows close, the money is gone.

The financial impact adds up fast. Deductions across major retailers typically run between 1% and 3% of gross sales, and a meaningful share of those are invalid. Every unchallenged deduction is recoverable revenue left on the table.

Identifying Invalid vs. Valid Deductions

A Walmart deduction is invalid when it can't be backed by documentation, doesn't match your trading agreement, or the math is wrong. Valid deductions come with backup Walmart can produce on request and fall within agreed terms. Sorting the two before you file keeps your dispute credits and buyer relationship intact.

What Makes a Deduction Invalid

A deduction is invalid when Walmart can't back it up with documentation, when the charge doesn't match your trading agreement, or when the math is simply wrong. Common examples include:

• Shortage claims where your carrier's proof of delivery confirms full shipment
• Price discrepancies that don't align with your current item setup in Retail Link
• Duplicate deductions taken twice against the same invoice
• Compliance fines issued for violations your team can prove didn't occur

What Makes a Deduction Valid

Valid deductions are backed by clear documentation and fall within your agreed terms. If Walmart has a signed Supplier Agreement covering a specific fee, a backup document matching the amount, and a deduction code that aligns with the charge type, the deduction is likely legitimate.

Disputing valid deductions wastes dispute credits and signals to your buyer that your reconciliation process is reactive. Unmanaged deductions compound into real revenue loss that goes well beyond any single charge. Save your disputes for charges you can win.

Common Walmart Deduction Codes You Need to Know

Before disputing anything, you need to speak Walmart's deduction language. Each deduction arrives with a code that tells you why money was withheld, and that code determines exactly what backup documentation you'll need to build a winning dispute.

Here are the codes suppliers run into most often:

• Code 22 (Shortage): Walmart claims fewer units were received than invoiced. These require proof of delivery, signed BOLs, and carrier confirmation to counter.
• Code 24 (Pricing Discrepancy): The invoice price doesn't match Walmart's purchase order. Pull both documents side by side before disputing.
• Code 25 (Advertising): Charges tied to co-op or promotional agreements. Always verify against your signed vendor agreement.
• Code 98 (Return to Vendor): As of July 2023, returns deductions flowing through Walmart's returns centers are no longer visible or disputable in APDP. If you have a return-related deduction, contact your Walmart supplier representative to find the correct dispute channel before filing anything.

Getting the code right matters because APDP disputes are submitted at the claim line level. A mismatch between your dispute reason and your backup documentation creates a structural problem with the claim itself, which produces an automatic denial.

Gathering the Right Documentation for Your Dispute

Weak documentation is the single most common reason valid disputes get denied, even when the underlying deduction is clearly wrong. Build your evidence file before you open APDP.

What you need depends on how the shipment was sent. Documentation requirements vary by freight method: prepaid, prepaid dropped-trailer, collect, full-truckload, and small-parcel shipments each carry different evidentiary standards. A signed BOL sufficient for a prepaid dispute is not always enough for a collect or dropped-trailer claim.

Here's a checklist by deduction type:

• Shortage (Code 22): signed BOL, POD, packing list, carrier confirmation, and item-level quantity support
• Pricing Discrepancy (Code 24): invoice, purchase order, and price confirmation pulled from Retail Link
• Compliance Chargeback: original PO, appointment confirmation, and receiving support
• Return to Vendor (Code 98): As of July 2023, these deductions are no longer visible or disputable in APDP. Confirm the correct dispute channel with your Walmart supplier representative before gathering documentation.

One mistake suppliers make often: submitting a carrier-generated delivery report instead of a signed POD. Walmart's APDP does not accept those as valid backup for shortage disputes. Get the actual signed document.

Accessing Walmart's Accounts Payable Disputes Portal (APDP)

Before you can file a single dispute, you need to get into the right place. Walmart routes all deduction disputes through its Accounts Payable Disputes Portal, commonly called the APDP, which lives inside the Retail Link ecosystem.

To get there, log into Retail Link, select the "Apps" menu, and search for "APDP." If the portal does not appear in your search results, your account likely lacks the required permissions. Contact your Walmart supplier representative to request access before anything else.

Before filing disputes, also search for APIS (Accounts Payable Information System) in Retail Link's Apps menu. APIS is the companion tool to APDP and the correct starting point for pulling invoice and payment backup data before you file. Gathering that documentation from APIS first cuts down considerably on back-and-forth once you're inside APDP.

Once inside, you will see deductions organized by status: open, in review, approved, and denied. If manual deduction work is slowing your team down, Glimpse handles the full dispute cycle for you.

Step-by-Step: How to File a Dispute in APDP

Before filing, gather your invoice copies, proof of delivery, and any backup documentation tied to the specific deduction code.

Locating the Deduction

Log into Retail Link and open the APDP module. Search by invoice number, PO number, or deduction date. Once you find the deduction, click through to see the reason code and the amount Walmart is claiming.

Submitting Your Dispute

• Select the deduction and choose "Dispute" from the action menu. Make sure you pick the right dispute reason from the dropdown, as mismatches between your reason and your backup will get the case rejected outright.
• Attach all supporting documents in accepted file formats. For shortage deductions, this typically means your signed BOL and carrier confirmation. For pricing deductions, attach the original PO and invoice showing the agreed-upon cost.
• Write a clear, factual dispute narrative in the notes field. Keep it focused on the discrepancy between what Walmart claims and what your documentation shows.

After Submission

Once submitted, APDP assigns a case number. Standard shortage disputes often come back within a week. More complex AP deductions typically take 30 to 45 days for Walmart's review. Check the portal regularly: cases requiring additional documentation will show a status update, and you must act before the dispute window closes.

Dispute Deadlines and Timelines You Cannot Miss

Not all Walmart deadlines work the same way. AP chargebacks in APDP have the tightest window: disputes must be submitted within 15 to 30 days of the posting date, per Walmart chargeback deadline guidance. OTIF compliance chargebacks are AR deductions disputed through HighRadius, not APDP, with a separate window closer to 30 days from invoicing. Miss the AP chargeback window and the money is gone for good.

As of 2024, shortage deductions allow 12 months from the invoice date, and general invoice disputes allow up to two years, per APDP best practices documentation. Verify both windows against your current Supplier Agreement, as Walmart can update these terms.

Here is a quick reference for the three main deadline tiers:

Build your workflow around the shortest deadline you're managing at any given time. A two-year window on a pricing dispute does nothing to protect a chargeback aging out in three weeks. Revenue recovery depends on meeting every deadline, the tight ones and the easy ones alike.

Tracking Your Dispute Status and Following Up

After submitting, check the Accounts Payable Dispute Portal at least once a week. Four status labels tell you where each case stands:

• Pending review: your dispute was received but not yet assigned to an analyst.
• In review: Walmart is actively reviewing your case.
• Supplier action needed: Walmart wants more documentation before proceeding. This status carries its own response deadline, so act on it fast.
• Approved or denied: final resolution.

If a case comes back denied, Walmart allows up to three refiling attempts. Resubmitting the same documentation gets you the same result. A successful refile requires something new: a stronger signed proof of delivery, item-level packing detail, or carrier confirmation missing from the original package.

Better evidence wins. The same weak package does not.

What to Do If Your Dispute Is Denied

A denial is not always the end. Before refiling, read the denial reason carefully because it usually tells you exactly what was missing.

The most common denial reasons are:

• Incomplete or unsigned documentation, especially proof of delivery without a carrier signature
• Wrong dispute code selected at submission
• Dispute narrative too vague to match the supporting documents
• Claim submitted through the wrong APDP channel for the deduction type

Fix the specific problem before resubmitting. If the denial cites insufficient documentation, track down the signed original. If the code was wrong, reopen with the correct reason code and a matching evidence package. Refiling with the same materials produces the same denial.

Preventing Future Deductions Through Process Improvements

The most common causes of invalid Walmart deductions are mislabeled shipments, missing proof of delivery, EDI errors, and PO price mismatches. Most trace back to a small set of recurring process gaps. Fixing those at the source cuts new deduction volume and reduces the time your team spends in APDP.

Root Cause Analysis After Every Dispute

Once you've resolved a deduction, pull the backup and ask why it happened. Most invalid deductions trace back to a small set of recurring issues: mislabeled shipments, missing PODs, timing gaps between delivery and invoice, or PO discrepancies. Documenting these patterns gives your ops and logistics teams something concrete to fix.

Our webinar on managing distributor deductions walks through how to turn root cause findings into process changes that stop invalid deductions before they hit your account.

Tighten Your Receiving Documentation

• Keep signed BOLs and delivery confirmations organized by PO number so retrieval takes seconds, not hours, when a shortage claim arrives.
• Confirm carrier sign-off at delivery and request timestamps, since Walmart frequently uses delivery records to validate shortage claims.
• Cross-check packing slips against invoices before shipment to catch quantity mismatches on your end first.

Audit Your EDI and Invoice Submissions

Many pricing and allowance deductions originate from EDI errors or invoices that don't match the PO exactly. Run a monthly reconciliation between your submitted invoices and Walmart's records in the Supplier Portal to catch drift early. See how Glimpse handles more deductions without headcount creep as volume grows.

The goal is fewer invalid deductions, not fewer disputes filed. Every deduction you prevent is revenue your team never has to chase.

How Deduction Management Services Can Help

A deduction management service handles the full dispute cycle on your behalf, covering document retrieval, validation, portal submission, and follow-up. For suppliers with high deduction volume or multiple retail channels, it is often more cost-effective than adding headcount to keep pace with dispute deadlines.

If manual dispute work is consuming your team's capacity, a deduction management service takes the full process off your plate. Instead of logging into Walmart's Supplier Portal, pulling backup documents, and writing dispute letters yourself, Glimpse handles all of it.

Glimpse pairs AI agents with human experts to dispute invalid deductions at scale across Walmart and other major retailers. The AI handles document matching and claim identification; the human experts behind Glimpse's win rate make judgment calls on edge cases and escalations. Glimpse maintains a 91% average recovery rate while handling roughly 4.3x the dispute volume a typical in-house team can manage.

For suppliers growing their retail footprint or dealing with high deduction frequency, Glimpse keeps recovery rates high without adding headcount.

Final Thoughts on How to Dispute Walmart Deductions

Walmart's dispute process rewards suppliers who are organized and penalizes those who are reactive. Your documentation, your deadlines, and your dispute codes all determine what you recover. A practical place to start: pull your open APDP cases today, sort by posting date, and flag anything with a chargeback deadline inside the next two weeks. That is your most urgent exposure. If you want a team that handles the full cycle, from document matching through portal submission and follow-up, talk to Glimpse.

This guide was developed by the Glimpse team based on direct experience processing deductions for over 200 CPG brands across Walmart and other major retailers. Glimpse's AI agents and human deduction experts have collectively disputed millions of dollars in invalid Walmart charges.

FAQ

How do you dispute Walmart deductions through the APDP portal?

Log into Retail Link, open the APDP module, locate the deduction by invoice or PO number, select the correct dispute reason from the dropdown, and attach your supporting documents. The deduction code determines which documents you need: shortage claims (Code 22) require a signed BOL and carrier confirmation, while pricing disputes (Code 24) need the original invoice and purchase order.

What's the dispute window for Walmart deductions, and what happens if you miss it?

Deadlines vary by deduction type: chargebacks must be disputed within 15 to 30 days of the posting date, shortage deductions allow 12 months from the invoice date, and general invoice disputes allow up to two years. Missing the chargeback window is permanent, so build your workflow around your shortest active deadline, not your longest.

Should I dispute all Walmart deductions or only the large ones?

Dispute every deduction you can prove is invalid, regardless of dollar amount. The common practice of writing off anything below a set threshold, say $1,000 or $2,000, exists because manual review makes small disputes uneconomical. In aggregate, those sub-threshold deductions represent real cumulative losses, and the math changes completely when AI handles the identification and documentation work.

What's the most common reason valid Walmart deduction disputes get denied?

Incomplete or unsigned documentation is the leading cause of denials, particularly for shortage claims where suppliers submit a carrier-generated delivery report instead of an actual signed proof of delivery. Read the denial reason carefully before refiling: Walmart usually tells you what was missing, and resubmitting the same package produces the same denial.

When does it make sense to use a deduction management service instead of handling Walmart disputes in-house?

A managed service makes sense when your dispute volume consistently outpaces your team's capacity, when deductions are expiring before your team can file, or when you're growing into new retail channels and don't want to add headcount to keep pace. Services like Glimpse pair AI agents with human experts to handle the full cycle, from document matching through portal submission and follow-up, maintaining a 91% average recovery rate across up to 4.3x the dispute volume a typical in-house team can process.