Amazon Buy Box (Featured Offer): definition, metrics and mistakes
Updated · By Ecomsellertool editorial team
The Buy Box is the older name for Amazon's Featured Offer: the offer a shopper buys from when they click Add to Cart or Buy Now. Since September 2026, offers from all sellers are evaluated. Amazon does not publish the formula; it names total price, delivery speed and certainty, free returns, seller performance and stock. An offer that is out of stock or priced out of line is not featured.
- The Buy Box is now called the Featured Offer. As of September 2026, Amazon no longer has a seller eligibility requirement: offers from all sellers are evaluated, though an uncompetitive offer may still not be featured.
- Amazon names five levers: a competitive total price including shipping, fast and free delivery with a narrow delivery window, free returns, a clean order experience, and stock on hand.
- An out-of-stock offer cannot be featured. If a price is low enough to look like a mistake, Amazon may stop the offer from being featured and ask the seller to check that the price is intended.
- Pricing Health flags offers priced out of line with the competitive external price or reference prices, and lists offers within 5% of the Featured Offer price.
- Only the SKU that holds the Featured Offer serves Sponsored Products and Sponsored Display ads; Sponsored Brands keeps serving while the product is available to buy (Amazon Ads help, updated October 16, 2026).
- The SP-API Sales and Traffic report gives buyBoxPercentage by date and by ASIN: the share of page views where your offer held the Add to Cart button.
Definition: Amazon Buy Box (Featured Offer)
Buy Box is the older name for Amazon's Featured Offer: an offer Amazon places in the Offer Display, the section of a product detail page that carries the Add to Cart and Buy Now buttons. When several sellers list the same product, Amazon evaluates every offer and chooses which offer or offers to feature.
The Buy Box is what sellers still call the Featured Offer, the offer at the top of a product detail page with the Add to Cart and Buy Now buttons (checked October 24, 2026). When several sellers offer the same product, Amazon features the most competitive offer or offers in the Offer Display. Other offers wait in the All Offer Display below it. When no single offer is clearly better, the Featured Offer can rotate among the best offers, and each variation (size or color) has its own Featured Offer. Ads, SEO and listing work send shoppers to the page; the Featured Offer decides whose offer they buy.
How does Amazon choose the Featured Offer?
Amazon does not publish a formula. It says it ranks all offers the same way for every product, with no manual overrides, and its seller guidance on the Featured Offer and help page name five levers (both checked October 24, 2026).
| Lever | What Amazon looks at | Where you see it |
|---|---|---|
| Price | Total price (item plus shipping) against competing offers, the external price and reference prices; a $40 offer with free shipping beats a $35 offer with $5 shipping | Pricing Health |
| Delivery | Fast, free shipping with a narrow delivery window; self-fulfilled offers can compete with FBA | Delivery dates shown on your offer |
| Returns | Free returns, set for the account or for specific products | Return settings |
| Order experience | Correct, undamaged, authentic items in the listed condition, charged correctly; order volume, chargebacks and Voice of the Customer complaints | Account Health, Voice of the Customer |
| Stock | An out-of-stock offer cannot be featured | Manage All Inventory |
Amazon also lists what it does not consider: customer reviews and star ratings, the Prime badge, and whether the offer is fulfilled by Amazon or by the merchant, all else being equal.
Price cuts both ways. Amazon's Pricing Health page benchmarks your total price against the competitive external price (the lowest recent price at a reputable retailer outside Amazon, adjusted per unit for pack size) and against reference prices: the Featured Offer price, the 60-day average selling price, the highest 14-day price shipped and sold by Amazon, the list price, the typical price and the 60-day average offer price (checked October 24, 2026). To be featured, the total should match or beat the external price, or sit in line with those reference prices. Pricing Health also lists offers priced within 5% of the Featured Offer price, where a small change can win it. At the other extreme, if a price is low enough to look like a mistake, Amazon may deactivate the offer and ask you to check that the price is intended. Amazon's Fair Pricing Policy lets it remove the Featured Offer from a price far above recent prices or an excessive shipping fee. If no offer qualifies, even when it is the only offer, the page shows "See options".
Lost the Featured Offer? What to check first
A quick triage, built from what Amazon's help pages say each signal means (checked October 24, 2026). Start at the top row and stop at the first one that matches what you see.
| What you see | Likely cause | Where to check | First fix |
|---|---|---|---|
| "See options" on your own brand's ASIN | No offer meets Amazon's bar: out of stock, a price issue, or not shippable to that address | Manage All Inventory, Pricing Health | Restock, fix the flagged price, check shipping settings |
| Another seller's name on Add to Cart | A rival offer is cheaper in total or delivers faster | The ASIN in Manage Inventory; your delivery promise | Compare total price, not item price; tighten the delivery window |
| Offer listed in Pricing Health as not competitive | Total price above the competitive external price | Pricing Health, Pricing Opportunities tab | Match the external price, or dispute it if it is out of date |
| Offer deactivated as a possible pricing error | Price below your own minimum or far from reference prices | Pricing Health | Confirm or correct the price and your minimum |
| Featured on some variations, not others | Each size or color is judged on its own | Business Reports by child ASIN | Fix stock and price for the variations that lost it |
| Ads at zero impressions on a "Delivering" campaign | Your SKU does not hold the Featured Offer | Manage Inventory: whose name is on Add to Cart | Add the SKU that holds it to the ad group |
How do you measure the Buy Box?
Featured Offer percentage = page views where your offer was featured ÷ total page views × 100
The SP-API Sales and Traffic report returns it as buyBoxPercentage, by date and by ASIN (checked October 24, 2026). In Seller Central the same number sits in Business Reports. When conversion drops on steady traffic, check it first. Two SP-API features make it actionable:
- Featured offer expected price (FOEP). Up to 40 SKU requests per batch call in the Product Pricing API, each returning the listing price at or below which your offer can expect to be featured, before promotions. Amazon notes the result can change as competing offers change.
- ANY_OFFER_CHANGED. Sent only for items where you have an active offer, per Amazon's notification type values. It fires on a change among the top 20 offers for a condition, a move in the price at other retailers, or a new winning offer or winning price. Our Buy Box loss alerts recipe shows how to turn it into an alert with the likely cause attached.
Why does it matter for operations and growth?
Most of the levers Amazon names are operational (stock, delivery, returns, order experience), so a lost Featured Offer is often an operations problem, not a pricing one. A stockout takes the offer out of the running, so a replenishment miss shows up as lost Featured Offer share. That is the stockouts gap. Slow or uncertain delivery promises are the order routing gap. Either way, your traffic converts on someone else's offer, or not at all. When the offer that wins is an unknown seller's, our MAP and seller monitoring recipe shows how to record it as evidence and queue it for a person.
What mistakes cost sellers the Buy Box?
- Ignoring shipping. Amazon compares total price, so a cheaper item with paid shipping can still lose.
- Racing to the bottom. Every cut comes out of margin, and a price that looks like an error can keep the offer from being featured, with Amazon asking you to confirm it. Set a contribution margin floor first; Amazon's own Automate Pricing lets you set a minimum price.
- Checking from one address. Amazon segments featured offers by region, postal code and customer type.
- Treating it as pricing only. If share falls while price holds, check stock, days of cover, delivery promises and return settings.
- Watching one account-level number. Track it per ASIN.
How does Growth OS protect the Featured Offer?
Ecomsellertool Growth OS runs on your own SP-API connection, and its pricing, inventory and reporting modules can be set up to watch the Featured Offer:
- Events, not weekly reports. A typical build subscribes to ANY_OFFER_CHANGED and PRICING_HEALTH, so a lost Featured Offer arrives as an event.
- Margin-safe pricing. Pricing rules can carry a margin floor per SKU, with FOEP checked against it. A change that would cross the floor goes to a person instead of going live.
- Stock in the same view. Featured Offer share per ASIN can sit next to stock and inbound shipments, so thin cover shows up beside the share it protects.
- Spend in context. Reporting can put Featured Offer share per SKU beside ad spend and impressions. Amazon's ads help page (updated October 16, 2026; checked October 24, 2026) says Sponsored Products and Sponsored Display ads get zero impressions when the advertised SKU does not hold the Featured Offer, even when the campaign shows "Delivering", and impressions stop the moment it shifts. Only the SKU that holds it can serve, so a brand with several SKUs on one ASIN should add each to the ad group. Sponsored Brands keeps serving while the product is available to buy. The same page still says an Order Defect Rate under 1% is needed to stay eligible.
You keep your accounts, your data and the custom code we build; the Growth OS base is licensed to you.
Where should you start?
If you cannot say which ASINs lost the Featured Offer last week and why, start with the free 24-hour diagnostic in the Ops Gap Diagnostic: connect Amazon with Login with Amazon, no password shared, and get a report of what is going wrong, such as stockouts, within 24 hours of connecting, on business days. We only read data; we never change listings, prices, stock or ads. Brands moving from Vendor Central should also read our 1P to 3P transition guide, since a former vendor has to win the Featured Offer on its own offers. Or see the base system in Growth OS.
If someone checks featured-offer status and prices by hand each morning, that check can become a workflow automation project: offer and price changes pulled on a schedule, with an alert when a top ASIN loses the featured offer and a person deciding what to change.
Frequently asked questions
Why am I not winning the Buy Box?
The usual causes are an out-of-stock offer, a total price (item plus shipping) above competing or external reference prices, slower or less certain delivery than other offers, or order problems visible in Account Health. Amazon's Pricing Health page flags pricing issues that can keep an offer from being featured.
What is a good Buy Box percentage on Amazon?
Amazon does not publish a target. Track it per ASIN over time; if you are the only seller on your brand's ASIN, a page view without your offer featured usually points to a cause you can fix, such as stock, price or a delivery promise.
Why do you lose the Buy Box on Amazon?
Common causes are a change on one side: your stock ran out, your price moved above a competitor or an external reference price, a competitor added faster shipping, or your price fell low enough to look like an error. For ASINs where you have an active offer, the SP-API ANY_OFFER_CHANGED notification fires when the winning offer or its price changes.
What is the Buy Box price on Amazon?
It is the price of the offer currently featured on the product detail page. In the ANY_OFFER_CHANGED notification, Amazon reports it as a landed price: listing price plus shipping, minus any Amazon Points. Compare your own total price against it rather than the item price alone.
Do Amazon ads run if I lose the Buy Box?
Sponsored Products and Sponsored Display ads get zero impressions while your SKU does not hold the Featured Offer, even if the campaign shows as delivering. Sponsored Brands ads keep serving as long as the product is available to buy. If several of your SKUs sit on one ASIN, only the SKU holding the Featured Offer can serve ads, so add each of them to the ad group.
How do I dispute the competitive external price Amazon uses?
If you think the outside price that keeps your offer from being featured is out of date, open Get help and resources in Seller Central, choose the Featured Offer tile, enter the ASIN and SKU and say the external price has changed. Amazon says this self-service case can resolve in as little as 30 minutes.
How we research, fact-check and compare: our editorial standards. Spot an error? Email hello@ecomsellertool.com and we will correct it.
