Sourcing for Amazon in 2026: The Five Rules, Gated Categories and the Invoice That Has to Hold Up

By Archit Mathur · Published 2026-08-14 · Last updated 2026-08-14

The expensive version of this mistake has a specific shape. Inventory is bought, it arrives, it is good product from a real supplier, and it cannot be listed - because the category needs approval, or the brand is gated, or the invoice does not say what Amazon needs it to say. Nothing about the goods is wrong. The order of operations was.

Amazon's five sourcing guidelines

Amazon publishes five of these, and they are worth reading as written rather than in paraphrase, because four of them are widely repeated and the fifth almost never is.

Validate your suppliers

Confirm the suppliers you buy from are legitimate and authorised to sell the branded products you intend to offer. Amazon suggests checking business licences, brand authorisation letters, business bureau ratings and other credibility indicators. The operative word is authorised - a supplier can be entirely real, sell you genuine product, and still not be an authorised channel for that brand.

Build relationships with brands

For some branded products you need explicit permission from the brand owner to sell on Amazon. This is not a formality that can be back-filled after a purchase order. If the brand's answer is no, no amount of documentation downstream changes the outcome, and the stock is already yours.

Retain business invoices

Amazon may request documentation proving the authenticity of your products. Invoices should carry the supplier's contact information, an itemised list of products, and purchase dates. Retaining them is a filing habit rather than a strategy, and it is the single cheapest insurance policy available to a reseller - the request arrives without warning and the window to respond is short.

Understand the Drop Shipping Policy

If you fulfil through a third party, comply with the policy: validate the supplier, formalise the arrangement with a service level agreement, and identify yourself as the seller on all customer-facing material. The detail of this is covered further down, because it is the rule most often broken by accident.

Auctions are not a valid source of supply

This is the one almost nobody repeats. Amazon states that auctions and auction-style environments are not considered valid sources of supply, and that reselling products intended for destruction or disposal, or otherwise designated as unsellable by the manufacturer, supplier, vendor or retailer, is strictly prohibited. Pallet buying, liquidation lots and returns pallets sit directly in the path of that sentence, and they are exactly the sourcing routes marketed hardest to new sellers on the basis of margin.

Gating sits at three levels, and they behave differently

"Approval required" is a single message covering three distinct restrictions, and working out which one you have hit is the first diagnostic step, because the remedy differs.

Category-level restrictions cover an entire category and are usually about safety and regulatory compliance. Brand-level restrictions are requested by or applied on behalf of a brand owner, and are about counterfeit control and channel management. ASIN-levelrestrictions apply to individual products, often after a specific problem with that product. The Seller Central help page for the exact category or brand is the authority on what is required - requirements change, and they differ by marketplace.

Gating status is also not universal. It can vary between sellers depending on account age, performance and selling history, which is why lists of gated brands published anywhere else go stale and why the only reliable check is attempting to list the product in your own account before buying it.

What makes an invoice hold up

Most rejected applications are not rejected on formatting. They are rejected because the document does not evidence what Amazon is trying to verify, which is an authorised supply chain rather than a purchase.

The recurring failures are consistent across every practitioner account of this process. A consumer receipt instead of a commercial invoice. A supplier who is real but not authorised for the brand. A business name or address on the invoice that does not match the details on the Seller Central account - a small mismatch, and one of the most common reasons applications fail. Quantities too low to read as wholesale purchasing.

The structural point underneath all of this is that ungating is a sourcing problem before it is a paperwork problem. If the supplier is not the right kind of supplier, no formatting fixes the application. Which means the check belongs before the purchase, when the answer is still free.

Drop shipping, stated exactly as the policy states it

Drop shipping is permitted. What is prohibited is drop shipping in a way that lets the customer see anyone other than you. Amazon's requirement is that you are the seller of record, and the policy is unusually specific about what that means in practice.

You need an agreement with your supplier under which you are the only seller of record and the only entity identified as the seller on all packing slips, invoices, external packaging and any other information provided with the product. You must remove any packing slips, invoices, external packaging or other material identifying a different seller or third-party supplier before the order ships. You remain responsible for accepting and processing customer returns.

The prohibited version is buying from another retailer and having that retailer ship directly to your customer where their name, logo or any identifying information reaches the buyer, or where the shipment does not identify you as the seller of record. Amazon states that violations of this policy negatively affect account health and your ability to fulfil future orders through the merchant-fulfilled network.

This is an account health topic wearing a sourcing costume

The reason to treat all of this as more serious than administration is where the consequences land. A sourcing decision that goes wrong does not usually present as a listing error. It presents weeks or months later as an inauthentic complaint, an intellectual property infringement notice, or a policy violation on the Account Health page - attached to the account, not to the product.

At that point the remedy is a document you either kept or did not. Invoices from an authorised supplier, dated, itemised, with matching business details, are what an inauthentic complaint is answered with. A seller who bought from a marketplace listing, a liquidation pallet or an auction has nothing to submit, regardless of whether the goods were genuine. The paperwork is not evidence of good behaviour; it is the only permitted form of the argument.

This also explains the timing problem. The complaint arrives long after the purchase, often after the stock has sold through, and the response window is measured in days. Nothing warns you that a supplier has become a liability in the interval.

The cheapest place to fix this is before the purchase order

Every control in this article costs almost nothing at the point of sourcing and a great deal afterwards. Attempting to list the product before buying it reveals gating in about a minute. Asking a supplier for brand authorisation before ordering costs an email. Checking that the invoice will carry your registered business name costs nothing at all. After the pallet arrives, all three become expensive, and one of them may be impossible.

What cannot be front-loaded is the monitoring afterwards. Gating status changes, brands close categories they previously left open, and policy violations are raised against an account with no advance warning and a short clock. The habit that catches those is not better sourcing judgement - it is noticing the account state changed on the day it changes, rather than the next time someone opens Seller Central.

Frequently asked questions