The email arrives on a Tuesday: a regional buyer at a national chain loves the product and wants a purchase order. For a brand that grew up on an Amazon storefront or a Shopify site, it feels like being called up from the minor leagues. It is. The majors also have umpires, and they bill you.
Two different Amazons, two different rulebooks
A first distinction worth making: most brands on Amazon sell through Seller Central, setting their own prices and shipping to Amazon warehouses or customers. They pay fees, but they don't typically receive the EDI compliance chargebacks that wholesale suppliers do.
Vendor Central, Amazon's first-party program, is different. Amazon buys inventory from you wholesale, and you ship against its purchase orders like any big-box supplier. That brings compliance chargebacks for label accuracy, ASN accuracy, carton content, shipping in the wrong container and purchase-order on-time accuracy, per deductions specialist iNymbus. The same firm puts the dispute window at roughly 11 days, which is not much longer than a carton spends in transit.
Walmart, Target, Kroger, Ulta Beauty and Sephora run the same basic playbook: a routing guide, an EDI mandate and a schedule of charges for falling short of either.
The leak is bigger than it looks
Individually, compliance fines look like rounding errors. Collectively, deductions are a line item. iNymbus estimates that deductions and chargebacks consume 5% to 15% of revenue for many suppliers, once promotional, pricing, shortage and compliance deductions are counted together.
Jon Allen of Woodridge Group, a Bentonville consultancy, illustrated the scale in January with a hypothetical $150 million snack brand that books $50 million in fourth-quarter revenue and gives back about $7 million in deductions: $5 million in trade and promotional deductions, $1 million in compliance and OTIF charges, and the rest miscellaneous, per Talk Business & Politics. The same report noted that around 20% of deductions may be preventable but often go unchallenged.
A purchase order is revenue. A purchase order net of deductions is profit. Only one of them shows up in the launch announcement.
Meanwhile, the import bill changed
For brands that source finished goods, components or packaging from overseas, 2025 rewrote the landed-cost math. An executive order signed July 30, 2025, suspended duty-free de minimis treatment for shipments of $800 or less from all countries, effective August 29, 2025, and the One Big Beautiful Bill Act permanently repeals the statutory basis for the exemption from July 1, 2027, according to law firm White & Case.
Freight forwarder Unicargo reports that China and Hong Kong shipments lost the exemption earlier, on May 2, 2025, and that sellers who relied on small parcels saw costs rise 15% to 40%, and that the old trick of splitting orders into small packages to avoid duties is gone. The practical effect for an emerging wholesale brand: less margin left over to absorb chargebacks just as the chargebacks begin.
A pre-flight checklist for your first big-box PO
- Read the routing guide like a contract, because it is one. Labels, pallet heights, carton weights, appointment rules and ASN timing are all in there, along with what each miss costs.
- Choose an EDI provider for support, not just price. Ask how quickly they fix a broken map and whether they alert you to rejected acknowledgments (997s and 824s).
- Brief your 3PL in writing on each retailer's label and ASN requirements. Many compliance fines start on someone else's dock.
- Budget for deductions. If the model only works at 100% of invoice, it doesn't work.
- Put dispute windows on a calendar. Eleven days at Amazon, a few weeks at most others. Unopened notices become accepted notices by default.
The bottom line
Moving from storefront to shelf is still one of the best things that can happen to a consumer brand. Just count the fines as a cost of doing business, measure them every month, and learn to tell a fair charge from a mistaken one. The brands that do are the ones that stay on the shelf.