How to win the Amazon Buy Box

What the Buy Box is

The Buy Box is the panel at the top of the product page from which customers buy with one click. When the same item is sold by several sellers, Amazon features the offer it considers most competitive; the others end up in the “Other sellers on Amazon” list, which many customers never open.

Amazon can show more than one Featured Offer. If no offer is eligible, a link to all buying options replaces the purchase buttons, and no seller holds the Buy Box.

The factors that matter

Amazon doesn't publish the full algorithm, but it clearly states the factors that weigh most.

• Total price, shipping included: Featured Offers are commonly at or below the lowest priced alternatives
• Shipping: fast, free and with a reliable delivery date. According to Amazon, fulfilling orders yourself can be as effective as its fulfillment network, if the service lives up to it
• Order experience: the right, undamaged item, condition as described, authenticity, correct charges and few disputes
• Availability: an out-of-stock product can't be the Featured Offer
• A price neither too high nor too low: an off-market price makes the offer ineligible, and a suspiciously low one can be blocked as a possible error
• Account: offers you fulfil yourself require the Professional selling plan

How to check whether your products are eligible

In Seller Central, on the Manage Inventory page, you can add the Buy Box eligibility column from the preferences: it shows for each product whether its offer can be featured.

Also keep an eye on the Account Health page: order defects, cancellations and late shipments are the metrics Amazon looks at, and that's where you find the targets to meet.

The right price: neither too high nor too low

Price is the factor you can act on fastest, and also the easiest to get wrong. Always lowering wins the Buy Box but eats your margin, and a race to the bottom with other sellers has no winners. Standing still, on the other hand, loses it as soon as a competitor moves.

Then there's a costly detail: Amazon reassigns the Buy Box with a few minutes' delay. Whoever keeps lowering during that window wins it at a lower price than needed, and stays there until the market changes.

The healthy rule is to follow the competitors that matter, within a minimum and a maximum that protect your margin, not to lower when you already hold the Buy Box, and to climb back as soon as there's room.

How Mossap helps

Mossap handles the price, the part that changes constantly. Shipping, metrics and availability remain in your hands.

• Tracks competitors 24 hours a day and compares offers on total price, shipping included
• Never goes below your minimum or above your maximum, which can also be calculated with formulas on cost, shipping or percentages
• Can avoid lowering your price when you already hold the Buy Box, and cap how far you go below whoever holds it
• With the upward price probe it looks for the highest price the Buy Box will hold, and steps back at once if it's lost
• Lets you choose whom to compete against: same condition, minimum seller rating, Amazon as a seller
• Prevents a merchant-fulfilled offer from going below the price of the same FBA offer
• Also handles the Amazon Business Buy Box, which has its own competitors

How the upward price probe worksAmazon Business repricingAll features