An unauthorized seller does not just take a few orders. They can win the Featured Offer on the ASIN you paid to rank, absorb the conversion from your Sponsored Products spend, and train customers to expect a lower price. To stop unauthorized sellers on Amazon, start with a hard commercial truth: Amazon will not remove a seller simply because they are outside your approved distribution network.
In the US, the first-sale doctrine generally allows the resale of genuine products that were lawfully purchased. Amazon’s enforcement tools are built around counterfeit goods, intellectual-property infringement, materially different products, inaccurate condition, and policy breaches. A Minimum Advertised Price breach or a lower offer price, on its own, is not a Report a Violation case.
That distinction changes the play. The objective is not to fire off complaints at every new merchant name. It is to build evidence that identifies the supply leak, removes offers where Amazon policy supports removal, and makes future leakage traceable at the unit level.
Why an unauthorized offer costs more than its price cut
Open the detail page and select the offer count beneath the Featured Offer. If an unauthorized FBM seller is winning that placement at $29.99 while your FBA offer is $34.99, the visible price gap is only part of the loss. Your Sponsored Products campaign can still spend against the same child ASIN, while the shopper who clicks may purchase from the seller holding the Featured Offer.
Measure the effect in Seller Central before changing bids. Go to Reports > Business Reports > Detail Page Sales and Traffic by Child Item and export the last 30, 60, and 90 days. Track Sessions, Unit Session Percentage, Ordered Product Sales, and Units Ordered against the dates on which the new offer appeared. A falling Unit Session Percentage with stable Sessions is usually a conversion problem, not a traffic problem.
Then check Brand Analytics > Search Query Performance for the same period. Search Query Volume, Search Funnel Click Share, and Search Funnel Purchase Share will not name the unauthorized merchant, but they reveal whether the ASIN is losing share at the query level. This matters because lowering PPC bids to protect ACoS can hand organic rank straight back to the category giant you were trying to displace.
Separate resale from a reportable violation
The first question is whether the seller has genuine, identical inventory. “Unauthorized” and “counterfeit” are not interchangeable terms, and treating them as interchangeable creates weak cases and can put your Brand Registry reporting privileges at risk.
A genuine resale offer may still become actionable if the product is materially different from the item described on the ASIN. Differences can include missing manufacturer warranty, altered expiry information, foreign-language packaging where the listing promises US retail packaging, missing safety labeling, or a used item offered as New. The detail page claim must be specific. A vague allegation that a product “does not look right” will not survive review.
For every suspect offer, create a case file with 6 fields: ASIN, SKU, seller display name, seller ID, offer price, and first-seen date. Add fulfillment method, condition, promised delivery date, and screenshots of the offer page. Seller names change. The seller ID is the durable identifier, and it is visible in the seller’s storefront URL.
Do not rely on screenshots alone. Buy 1 unit from the seller when the risk justifies it. Preserve the order confirmation, shipping label, outer carton, invoice or packing slip, lot code, expiration date, UPC, and every side of the retail pack. Photograph the unit before opening it. If the product is cosmetics, wellness, or skin care, record the batch code and compare it with the format used in your authorized production runs.
Use Brand Registry for the violation that actually occurred
Brand Registry’s Report a Violation tool sits under Protect. Use it when you have a defined IP or product-integrity basis, not as a distribution-management inbox. The evidence should match the complaint type: trademark for misuse of a registered word mark or logo, copyright for copied protected images or text, patent for a relevant patent claim, or counterfeit when the test buy shows it is not your product.
A registered trademark alone does not give a brand the right to remove every seller from a genuine listing. It does give you control over accurate brand representation and a route to report counterfeit or infringing products. Keep registration details, product images, packaging artwork, and test-buy evidence in one folder so the person submitting the report can state exactly what differs.
If the problem is condition, create a case through Seller Central with the order ID and clear evidence of the mismatch. For a New-condition offer, show the missing seal, damaged packaging, used residue, expired date, or other objective defect. For a listing-content issue, document the exact bullet point, image, or warranty statement that makes the offer materially different.
Never use the counterfeit workflow to settle a price dispute. Amazon can reject the complaint, reinstate an offer, or scrutinize future submissions. A removal that does not stand up to a test buy is not protection. It is noise.
Find the distributor leak before it becomes a seller swarm
One unauthorized seller may be a one-off liquidation event. Five sellers on 3 ASINs usually point to a supply-chain problem. Compare the lot code from the test buy with your production and invoice records. If your codes identify a manufacturing run, you can narrow the likely distributor, retailer, sales rep, or fulfillment partner that received those units.
This is where many brands lose the plot. They send a warning to the seller, the offer disappears for 48 hours, and the same stock returns through another storefront. The inventory did not vanish. It moved.
Review your last 12 months of invoices by customer, SKU, and quantity. Look for order patterns that do not match the buyer’s retail footprint: unusually large purchases, repeated orders just below an approval threshold, or a customer buying an assortment that maps perfectly to your highest-ranking Amazon ASINs. A distributor agreement without a serial, batch, or territory control is difficult to enforce after stock has left your warehouse.
For future production, consider Amazon Transparency for eligible branded units. Each sellable unit receives a unique code that Amazon can scan to help block non-authentic units from reaching customers. It adds operational work: codes must be applied correctly, inventory planning changes, and an old un-coded batch can remain a loophole. Yet for a product repeatedly hit by counterfeits, the extra packaging control can be worth more than another round of discounting.
Project Zero may also be relevant for brands accepted into the program, but it is not a substitute for evidence. Automated protections and self-service counterfeit removals work best when the catalog, trademarks, packaging, and supply records are already clean.
Protect the ASIN while the case is open
Do not respond to a Featured Offer loss by automatically cutting your own price. First inspect your offer in Manage All Inventory: condition, quantity, handling time, and fulfillment channel. An FBA stockout followed by an FBM offer with a 2-day handling time can alter Featured Offer eligibility even if your advertised price is lower.
Check the parent-child relationship too. A broken variation can split reviews, send ads to the wrong child ASIN, and make a legitimate offer look weak beside an unauthorized competitor. In Seller Central, use Inventory > Manage Inventory and the Variation Wizard to confirm that size, color, scent, or pack-count attributes match the physical product. A 2-pack must not share a child ASIN with a 1-pack merely because both use the same hero image.
Keep a weekly offer log for your top 20 revenue-driving ASINs. Record seller count, Featured Offer seller, lowest landed price, FBA or FBM status, and your own available quantity. Pair that sheet with the 30-day Child Item report and you will see whether the threat is isolated, seasonal, or expanding across the catalog.
This week, choose the 5 ASINs where unauthorized offers threaten the most revenue. Capture the seller IDs, buy 1 unit from the highest-risk seller, and compare its lot code against your invoice trail before you submit a single complaint. That is how you move from chasing storefronts to closing the leak that keeps feeding them.
