Walmart code 21: Concealed Shortage
Walmart code 21 is a concealed shortage: units reported missing after the shipment was received and signed for in full, usually found when a store or club opens cartons that a distribution center had already accepted.
The receiving facility signed the freight bill complete, then a later count at the store or a second touch inside the DC found fewer units than the carton was supposed to hold.
Frequently worth fighting. Because the freight bill was signed clean, the burden is on Walmart to show the units never arrived, and an accurate carton-level ASN usually contradicts the claim.
Evidence that settles a 21 dispute
Most decisive first. A dispute filed without the first item on this list rarely survives review.
- 1 Carton-level ASN (EDI 856) showing the pack quantity for the specific SSCC
- 2 Signed bill of lading with no shortage or exception noted at delivery
- 3 Warehouse pick, pack, and scan records tying units to the carton
- 4 Proof of delivery and any carrier seal record showing the trailer arrived intact
How to stop code 21 recurring
What the carton is supposed to hold has to match what it does hold. Carton-level ASNs generated from the actual pack, with SSCC labels that match the contents, remove the ambiguity the claim depends on.
Endless keeps the purchase order, the pack, the ASN, the bill of lading, and the invoice on one record, so the documents that settle a Walmart deduction are already connected when the claim posts. EndlessEDI builds carton-level 856s against scanned SSCC labels and validates the shipment before it goes out, which is what moves the number down: brands on Endless report a 90% drop in retailer EDI chargebacks.
- Where to dispute
- Most AP deductions surface and are disputed in the Accounts Payable Disputes Portal (APDP) inside Retail Link. OTIF fines are accounts receivable deductions and follow a separate path with a shorter window.
- Dispute window
- Reported windows vary by claim type: roughly 12 months from the invoice date for shortage deductions and up to two years for general invoice disputes, against a reported window closer to 30 days from invoicing for OTIF. Confirm the current deadline in APDP before you plan a recovery batch.
Related Walmart codes
Deduction programs and dispute windows change and vary by vendor agreement. Figures marked “reported” come from third-party supplier resources, not a retailer’s published fee schedule — confirm against your current routing guide and supplier agreement before you file. See every Walmart deduction code .
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