Vendor Chargebacks: Why Retailers Fine Suppliers and How to Stop Them

Vendor chargebacks are deductions a retailer takes from what it owes a supplier when a shipment breaks the retailer's rules. Most of them start in the warehouse: a carton label that won't scan, an advance ship notice (ASN) that doesn't match the truck, a short shipment or a delivery outside the window. That holds whether you run your own warehouse or outsource order fulfillment to a 3PL. If you sell to Walmart, Target or Amazon, cutting them means changing how your retail and B2B orders get built and documented. Getting back money already deducted takes records that prove the shipment was right.

What is a vendor chargeback?

A vendor chargeback is a penalty for a compliance miss on a shipment. The retailer doesn't send a bill. It pays your invoice short and lists the deduction on the remittance with a reason code, and the reason code is often all you get.

Three kinds of deduction land on the same remittance:

• Compliance chargebacks are fines for breaking the routing guide or vendor manual: late arrival, a missing ASN, bad carton labels, a pallet built off spec.
• Shortage deductions cut payment to the units the retailer's receiving record shows. Walmart's code 22, Goods Billed Not Shipped, is one of them.
• Allowances and promotional deductions come from the vendor terms you negotiated: co-op, markdowns, promotions. They aren't warehouse errors, but someone still has to match them.

In Amazon Vendor Central, a chargeback is an accounts receivable deduction for a compliance defect, tracked apart from shortages and other accounts payable deductions, according to SPS Commerce's summary of Amazon's chargeback pages.

The first two kinds are where warehouse execution shows up. Someone on your team has to match every deduction to a purchase order (PO) and a shipment, then decide whether to accept it or dispute it.

What causes most vendor chargebacks?

Each retailer publishes its rules in a routing guide and a vendor manual, and a chargeback follows when a shipment breaks one of them. Five errors account for most routing guide compliance problems:

1. ASN errors. The ASN (EDI 856) tells the distribution center what's on the truck before it arrives. A missing, late or wrong ASN draws a fine even when every unit is on the truck. Our post on EDI compliance through SPS Commerce covers how the ASN gets built and sent, which is where most EDI chargebacks start.
2. Carton label errors. The UCC-128 label on each carton carries the code that ties it to the ASN. A label that won't scan, wraps over a box seam or never made it into the ASN sends the carton to manual receiving.
3. Pallet and packing violations. Pallet height, stretch wrap, case pack, placards and carrier choice all come from the guide. A pallet built to your DTC habits gets reworked at the dock, and the rework comes out of your payment.
4. Short and over shipments. Shipping fewer units than the PO hurts your in-full score. Some retailers fine over-shipments too, including Target and Amazon.
5. Late or early delivery. Retailers schedule receiving labor around the appointment. A truck that arrives a day before the window can count as a miss, the same as one that arrives a day after.

Four of the five happen inside the warehouse or in the data the warehouse sends. Late delivery is shared with the carrier, so who books the freight matters, especially for Walmart OTIF.

How do Walmart OTIF fines work?

Walmart OTIF (on time, in full) measures whether each shipment arrived on its scheduled date with every unit on the PO. Since February 1, 2024, Walmart has expected suppliers to deliver on time 90% of the time and in full 95% of the time, down from the 98% bar it set for both in 2020. Suppliers who fall short pay OTIF fines of 3% of the cost of goods that missed, according to Supply Chain Brain's report on the change.

At 3%, a late truck carrying $40,000 of goods at cost turns into a $1,200 deduction. The fine also comes on top of the lost sales when the shelf sits empty.

Your freight terms set which part of the OTIF score you control. On prepaid freight, you book and pay the carrier, so a late truck is your miss. On collect freight, Walmart books the carrier, and your job is to have the complete order ready when the truck arrives. Cleo's summary of the program, citing FreightWaves, splits the responsibility that way.

Walmart chargebacks beyond OTIF

Other Walmart chargebacks run through accounts payable. Suppliers see and dispute them in the Accounts Payable Disputes Portal (APDP) inside Retail Link. Code 22 means your invoice covered more units than Walmart's receiving record shows. Endless Commerce's guide to that code traces many of them to split deliveries or to invoices built from the PO instead of the shipment, with nothing physically missing. OTIF fines are accounts receivable deductions and follow a separate dispute path with a shorter window.

The 3% figure sits next to the industry OTIF median and the cost of invalid deductions in our roundup of retail chargeback and OTIF figures.

How do Target and Amazon vendor chargebacks work?

Target

Target scores fill rate against the quantity on the original purchase order. Under the older policy, a supplier who could ship only 90 of 100 units could revise the PO down to 90 with an EDI 860 and keep its score. Now the 95% fill rate standard counts against the original 100, and Target charges 5% of the cost of goods on units short or over, according to SPS Commerce's summary of Target's compliance policy. Shipping short on purpose no longer protects you, and over-shipping counts as a miss.

Target fines early arrivals as well as late ones. Shipments to its non-perishable regional distribution centers must arrive no more than one day before the ship window opens and no more than one day after it closes. Units outside that range carry a 5% cost-of-goods charge. ASN problems are charged separately, per carton when the ASN is inaccurate and as a percentage of cost of goods when no ASN arrives at all.

Amazon Vendor Central

Amazon 1P vendors track chargebacks in Vendor Central under Operational Performance. The categories map to the same warehouse errors: PO on-time accuracy, ASN accuracy, carton content accuracy, missing carton labels and barcodes that won't scan.

Carton content accuracy catches case-pack mistakes. In Amazon's own example, an ASN lists 10 units in a box and the box holds five case packs of two. Amazon counts all 10 units as defects and charges $26, because the scanner reads the case-pack barcode instead of the sellable unit's.

Every other retailer

Costco, Chewy, grocery chains and wholesale clubs each publish their own routing guide and fee schedule. Get both before the first PO ships, because the warehouse has to build to them from the first carton.

How do you dispute a vendor chargeback?

You win a dispute with records made on the day the shipment left. Without them, the retailer's receiving record stands.

1. Match the deduction. Tie each line on the remittance to its PO, invoice and shipment. The reason code tells you which records to pull.
2. Check the deadline. Amazon gives vendors 30 days to dispute a chargeback in Vendor Central and reviews a dispute twice at most. At Walmart, OTIF fines have a shorter dispute window than invoice deductions in APDP. Log the deadline the day the deduction posts.
3. Pull the evidence for that code. Shortages need the ASN matched line by line to the invoice, the bill of lading with the case count that left the dock, signed proof of delivery and carton scan records. Late-delivery fines need the appointment confirmation and carrier timestamps. Label and prep fines need photos of labeled cartons and built pallets taken before loading.
4. File once, completely. Send the full explanation and every document in the first filing. At Amazon, a thin first filing uses up one of your two reviews.
5. Fix the cause. Sort deductions by reason code each month. If one code keeps coming back from the same retailer, that's a process change at the warehouse, and it saves more than winning disputes one at a time.

Most of the evidence in step 3 is created in the warehouse. If your 3PL doesn't keep it per PO, you can't send it back to the retailer.

What should you ask a 3PL about vendor chargebacks?

A snack brand selling into Target, Costco and Sam's Club put this in its RFP to us this fall: do you support investigation of retailer deductions and chargebacks, and how are chargebacks caused by warehouse execution errors handled? Ask every 3PL the same thing, then ask for detail:

• Which retailer routing guides do you ship to today? A warehouse that already ships to your retailers has the SOPs built.
• Who builds and sends the ASN, and when? It should go out before the truck leaves, built from what was loaded.
• Are carton labels checked before cartons close? Scanning a label at pack-out catches the bad one before the retailer's dock does.
• What records do you keep for each PO? You want the ASN as sent, pallet photos, the bill of lading and proof of delivery, and you want to know how long they're kept.
• Who reviews a deduction with me? Get a name and a response time, plus the process when the warehouse caused the error.
• What's your order accuracy, counted on whole orders? Our guide on how to measure order accuracy shows why a rate counted per pick hides short shipments.

How does KSP keep retail orders out of the chargeback report?

KSP ships retail and wholesale POs to Target, Walmart, Costco and Chewy from the same inventory as your DTC orders. Each retailer's routing guide goes into the warehouse SOP before the first PO ships. UCC-128 carton labels are verified before cartons close, pallets are built to the guide's height and wrap rules, and the ASN goes out before the truck leaves. When a deduction posts, your account manager reviews it with you against the shipment record.

• Order accuracy: 99.999% across 32.1M orders, counted on whole orders.
• Shipping accuracy: 99.95%.
• Cutoff: orders in by 2 PM CST ship the same day, from a building with 29 dock doors.
• Issue response: a 2-hour SLA when something needs fixing.

On one Target display program, KSP built all 611 outbound pallets within four weeks of receiving the product. All 611 stores received their shipments on time, ahead of the installation schedule, with no damage or shortages.

Frequently asked questions