Amazon Listing Optimization in 2026: The Rules, Field by Field
Most listing guides treat an Amazon product page as a set of boxes to fill in. Two things break that model.
The title field changed in July 2026, and most published advice, including some of Amazon's own, still quotes the old limit. And Amazon's guidance on the Featured Offer, the slot most people still call the Buy Box, says an offer can be ineligible because the price is too high, and separately because it is too low, benchmarked partly against prices observed outside Amazon.
So a listing can score full marks on every field below and still show shoppers a "See options" link. This guide covers the fields against Amazon's current requirements, then the price band.
TL;DR
Since 27 July 2026 titles in every category except media are capped at 75 characters including spaces, down from 200, with a new searchable Item Highlights field carrying another 125. Over-length titles are not suppressed; Amazon rewrites them with AI, and only brand owners get a stated review window. Separately, Amazon says an offer can be ineligible for the Featured Offer for being priced too high or too low, and is removing the seller-performance gate that thinned the field before offers were compared. More offers on unchanged criteria means price carries more of the decision, not less.
Titles: The Rule That Changed
The cap is 75 characters. Amazon's title announcement, in its own words: starting July 27, 2026, titles in all categories except for media will need to be 75 characters or less including spaces. Media means books, music, video and software. No other exemption.
The January 2025 formatting rules still stand. No word more than twice, with prepositions, articles and conjunctions exempt, and the characters !, $, ?, _, {, }, ^, ¬, ¦ barred unless part of the brand name.
You did not lose the keyword space. It moved. Alongside the cap Amazon introduced Item Highlights, which in its words provides an additional 125 characters for materials or recommended use cases, searchable and displayed with the title. Amazon's position reported from the forums is that both fields are inputs for search with neither prioritised. So the roughly 200 indexable characters you had are still roughly 200, split into a line a shopper reads and a field carrying the detail.
What happens if you ignore it is the part worth knowing. Not suppression, not truncation. Amazon says titles still over 75 characters will be updated to the AI recommendation gradually, with listings staying active throughout. On review rights it commits to one thing only: brand owners get 14 days to review, modify and approve the recommendation. It says nothing about other sellers, and while trade coverage reports they get no window, that is not Amazon's stated position.
So a non-compliant title is not just one that performs badly, it is one you can lose control of. Worth rewriting your own first: in one thread on Amazon's forums a seller reported the listing AI updating their size attributes wrongly, with customers confused and returns mounting, and others reported the same. One seller's account rather than a measured error rate, but reason enough to get there before the AI does.
Why so much advice on this is wrong. Amazon's own seller-education content has not caught up: its Amazon SEO page, dated September 2025, still reads that the title character limit is 200 and recommends no more than 60. If Amazon's evergreen pages carry the superseded number, the articles copying them do too. Check the announcement, not the explainer.
What to do with 75 characters. Brand, product type, then the one attribute distinguishing this variant from the next: size, count, colour, compatibility. That is close to all you will fit, and everything else moves to Item Highlights, the bullets or the structured attributes. The keyword-stuffed title format is now impossible as well as inadvisable.
Images: The Specs and the Misquoted Minimum
Note the minimum, because it is commonly misquoted. The 1,600 pixel figure that circulates as a hard minimum is the stated optimum, not the floor: Amazon's advertising guide asks for at least 1,000 pixels in height or width and ties zoom to that figure. Work to 1,600 where you can, but do not re-shoot compliant 1,200 pixel images while genuinely undersized ones sit live.
One sourcing note: Amazon's detailed image style guide sits behind a Seller Central login, so the formats, the 10,000 pixel ceiling and the dpi figure cannot be checked against a public page, and Amazon's own properties disagree on frame fill.
Main images may not carry text, graphics, logos or watermarks at all, and anything resembling Amazon's "best seller" styling is a trademark problem on top of a policy one. The secondary slots are where the selling happens and Amazon suggests using all of them: lifestyle for context, a scale reference, an infographic for the specifications that decide the purchase. Our guide to structuring your image gallery covers the sequence.
If you are working from photographs you already own rather than commissioning a reshoot, there are tools for Amazon product branding that handle background removal, cropping to Amazon's dimensions and keeping a catalogue consistent across variants.
Bullet Points and the Product Description
Bullet points are scanned, not read. Amazon's advertising guidance recommends at least three, so treat three as the floor. Five is the maximum almost universally quoted, though that figure lives in Seller Central help rather than on a page you can open, so confirm it against your listing template.
Lead each bullet with the outcome, then the specification that delivers it. "Fits standard 16 inch wheels" is a specification; "Fits standard 16 inch wheels, so it works on most mid-size saloons without an adapter" is a reason to buy. Amazon recommends against emojis, special characters and hyperlinks here, and warns off promotional and pricing language. Our longer piece on writing effective bullet points covers the field on its own.
The product description is commonly given 2,000 characters, though the figure is quoted far more often than it is sourced and the real limit comes from your category's template. By the time anyone scrolls this far they are looking for a reason not to buy: will it fit, will it last, is it the right version. Answer those. A+ Content replaces the description for most shoppers, but it still exists in the data, so write it anyway.
Keywords and the Backend Search Terms Field
Keyword research for Amazon is a different exercise from keyword research for Google, because the queries carry purchase intent rather than curiosity. Our Amazon SEO guide goes deeper on ranking, including how price and sales velocity feed back into organic position.
Amazon gives sellers two free first-party tools. Product Opportunity Explorer reports niche-level demand, search terms with volume and conversion, and out-of-stock insights. Search Query Performance, inside Brand Analytics, reports how your ASINs performed against the queries that led to them, down to query volume, impressions, clicks, cart adds and purchases; Amazon describes Brand Analytics as a tool brands use, so treat it as brand-owner territory.
The backend search terms field, labelled Generic Keyword, takes up to 250 bytes, not characters, which matters with accented or non-Latin scripts. Amazon's guidance: stay within the limit, all lowercase with no punctuation, words separated by spaces, include synonyms, abbreviations and alternate names, never competitor brand names or ASINs, and do not repeat words already in your title or brand name.
Read that last one precisely, because it is widely overstated. Amazon does not say duplicates are penalised, and says nothing about bullets or description. So deduplicate for efficiency, not risk: a word already indexed from your title is budget you could have spent on a synonym you have nowhere else. Amazon still says the field works, describing the keywords as invisible to customers but able to help a product rank.
Where Your Listing Content Goes Now
Your fields also feed Amazon's AI shopping assistant, and the naming changed under most people's feet: on 13 May 2026 Amazon introduced Alexa for Shopping, bringing together Rufus's product expertise with Alexa+ personalisation. Amazon never says Rufus was retired, so "folded into" is accurate. It is US-only and needs no Echo device, Alexa app or Prime membership.
What Amazon tells sellers about it is short, and it is not about keywords. In its own words: Rufus pulls information from your listing content to answer customer questions; ensure your titles, bullet points and descriptions clearly answer common who, what, when, where, why and how questions; complete and accurate product attributes help Rufus provide better recommendations that include your products; and think about the questions customers ask before purchasing.
That points at attribute completeness and question coverage, not keyword density. If your product type has attributes sitting empty, that is the work.
There is no seller-facing metric for any of this. Amazon publishes no impression or citation reporting for it, nothing documented exists in Seller Central or Brand Analytics, and it never explains how products are selected for AI answers. Anything claiming to measure your visibility there is inferring it.
A+ Content and the Brand-Gated Elements
A+ Content replaces the plain description with modules: comparison charts, image-and-text blocks, brand story panels. Amazon's tools page gives the requirements as a Professional selling account plus either a Brand Representative or Reseller role on a brand enrolled in Amazon Brand Registry, or generic products in your catalogue. Note the Reseller and generic-products routes, because the common shorthand that A+ is brand-owners-only is not what Amazon says.
Amazon also offers Premium A+, adding larger images, video, interactive hotspots, carousels and question-and-answer modules, with no separate price listed.
Premium A+ costs nothing extra, but it is earned rather than granted, and a widely repeated claim says otherwise. Reports circulated that it had become available by default to all brand-registered sellers. A seller asked on Amazon's forums whether that was true or a rumour, and the Amazon staff member who answered said it is available to brand-registered sellers but not as immediate access just from being brand registered. The criteria given were a published A+ Brand Story across the ASINs mapped to your brand plus at least five A+ Content project submissions approved in the past twelve months, meaning five submissions rather than A+ on five ASINs.
Amazon says Basic A+ can increase sales by up to 8% and well-implemented Premium A+ by up to 20%, citing only "Amazon internal data" with no methodology or control group, so treat both as marketing claims rather than a study.
What A+ Content does not do is make you eligible for the Featured Offer. It is a conversion asset, not an eligibility one, which is worth knowing before spending a fortnight on modules to fix a Buy Box problem.
Reviews and Ratings, the Routes That Are Allowed
Incentivised reviews, review gating and asking for positive reviews specifically are all against Amazon policy, and enforcement is account-level. The routes that are allowed:
Request a Review in Seller Central, which sends Amazon's own neutral template, triggered per order within a set window after delivery.
Amazon Vine, which is widely described as free and is not. Amazon's own Vine programme page sets an enrolment cost per parent product: in the US store, free up to 2 units, $75 for 3 to 10, $200 for 11 to 30. You are not charged until a review publishes, and not at all if none arrives within 90 days, though you still absorb the cost of the units. Vine is FBA only, caps at 30 units, and an existing product qualifies only with fewer than 30 reviews already.
Fixing the reason for the bad reviews. Where a run of one and two star reviews names the same problem, no request programme outruns it. Treat them as product or listing feedback: "smaller than expected" is usually a missing scale reference in the images.
The Price Band That Keeps Your Offer Eligible
Here is the part the fill-in-the-boxes model leaves out.
Amazon's guidance on the Featured Offer, published April 2026, lists the reasons an offer can become ineligible. Three are about price and stock rather than content: running out of stock, pricing too high, and pricing too low.
Too high is the obvious one, and Amazon says Featured Offer prices are commonly at or below the lowest priced alternatives.
Too low is the one that surprises people. Amazon states that a low price may make an offer ineligible, and that it may ask the seller to confirm a suspected pricing error. A repricer undercutting aggressively with a floor set too low can lose the exact slot it was chasing, which no amount of listing copy will fix.
The competitive external price is the third. Amazon advises pricing at or below it and shows it in Manage All Inventory beside the lowest Amazon price. It is drawn partly from outside Amazon, so your own website or another marketplace can be why your Amazon offer is not featured. Amazon's developer documentation calls the same benchmark Competitive Price, having retired the older Competitive Price Threshold in September 2025, and states the trigger more fully: an offer can go ineligible when total price including shipping exceeds that benchmark, or when it exceeds recent prices. A pricing health notification fires when it does.
And a change now in flight, in Amazon's own words. Amazon describes selection as two steps: it determines which sellers are eligible on performance criteria, then ranks all offers from eligible sellers and selects from that pool. Its eligibility announcement says that starting July 2026 it would begin removing seller eligibility requirements, rolling out globally and completing by the end of 2026, having determined the first step no longer delivers additional value to customers. It adds that it is not changing how the Featured Offer is selected, that it will keep evaluating offers on competitive pricing, delivery speed and performance, and that being considered does not guarantee being featured.
The consequence runs opposite to the obvious reading. What is going is step one, the screen that thinned the field before offers were compared; step two stays as it was. A bigger pool judged on unchanged criteria means price competitiveness carries a larger share of what separates offers. Your account can be in perfect standing while a single ASIN is ineligible on price.
On fulfilment, Amazon says offers with fast, free shipping are more likely to be featured and delivery date certainty counts, but also that fulfilling directly can be as effective as using its own network. The signal is the delivery outcome, not the label.
Those conditions create a band rather than a target: a ceiling above which the offer stops being featured, a floor below which it also stops and may be queried, and an external reference that moves on its own. A static price list cannot stay inside a moving band, and nor can a weekly manual review. That is what automated repricing solves, and the automatable part is not the margin you accept, which is yours, but the continuous adjustment that keeps the price inside the band.
Repricer's rule set is built around these limits. Its features page describes Buy Box eligibility rules that keep prices within Amazon's price limits automatically, net-margin repricing that takes your entered costs and only sells at your target margin, and Buy Box threshold reporting that finds the highest price you can charge and still win the Box. For the mechanics of the slot, our Featured Offer guide covers it in full.
Key Takeaways
Titles are capped at 75 characters including spaces in every category except media, since 27 July 2026. Over-length titles get rewritten by Amazon's AI, and only brand owners have a stated review window. Item Highlights carries another 125 searchable characters, so the indexable space moved rather than shrank.
The widely quoted 1,600 pixel image minimum is the stated optimum, not the floor. Amazon's advertising guide gives 1,000 pixels in height or width.
Premium A+ costs nothing extra but is gated on a Brand Story across your brand's ASINs plus five approved A+ submissions in twelve months. Amazon publishes no seller-facing metric at all for its AI shopping assistant.
Amazon states an offer can be ineligible for being priced too high or too low, and benchmarks against a competitive external price observed outside Amazon. That is a band, and it moves.
Action Plan
This week. Find every title over 75 characters and rewrite it yourself before Amazon's AI does, moving the detail you cut into Item Highlights rather than deleting it. Fix anything repeating a word more than twice or using a barred special character outside the brand name.
Also this week. Check the competitive external price in Manage All Inventory against your own prices. Any ASIN where you sit above it is a candidate for your Featured Offer problem, however good the listing is.
This month. Audit main images against the table above; undersized images and non-white backgrounds are the two most common failures and both are quick fixes. Then review your minimum prices, since a floor below true landed cost plus fees exposes you at both ends: margin on the way down, eligibility if Amazon flags the price as a suspected error.
This quarter. Fill every secondary image slot, starting with a scale reference on anything attracting "smaller than expected" reviews. Then build a comparison chart in A+ Content if you qualify.
Frequently Asked Questions
1. How long should an Amazon product title be in 2026?
75 characters including spaces, in every category except media, since 27 July 2026. Any guide saying 200 is out of date, including some of Amazon's own seller-education pages. The detail that no longer fits goes into Item Highlights, a further 125 searchable characters.
2. Will Amazon really change my title for me?
Yes. Amazon says titles still over 75 characters will be updated to its AI recommendation gradually, with listings staying active throughout. The one review right it commits to in writing is for brand owners, who get 14 days to review, modify and approve. Amazon does not say what happens for other sellers; trade coverage reports the change is simply applied, which is plausible but not Amazon's stated position.
3. Can my price be too low to win the Buy Box?
Yes. Amazon's Featured Offer guidance lists pricing too low alongside pricing too high as a reason an offer can become ineligible, and says Amazon may ask the seller to confirm a suspected pricing error. A carelessly low floor is a risk to eligibility, not only to margin.
4. What is the competitive external price?
Amazon's benchmark for whether your price is competitive against the wider market, not just other Amazon offers. It appears in Manage All Inventory beside the lowest Amazon price, and Amazon advises pricing at or below it. Because the reference comes from outside Amazon, your pricing on other channels can affect it.
5. Does better listing copy help me win the Featured Offer?
Not directly. Amazon's published factors are pricing including shipping, shipping speed and delivery certainty, order experience, and stock. Copy is not among them. Good copy earns impressions and conversions; which offer gets featured is decided by price, fulfilment and performance. If your listing converts well when you hold the featured position and poorly when you do not, the problem is eligibility, not words.
A Note on Sources
Every Amazon requirement here comes from Amazon's own seller-facing material: the title announcement effective 27 July 2026, the January 2025 formatting rules that still apply, its advertising guidance, its A+ Content and Vine pages, its developer pricing documentation, and its Featured Offer and eligibility announcements. Figures widely quoted but not stated by Amazon have been left out rather than repeated, which is why several percentages common to articles on this topic are absent. Where this reports trade coverage rather than Amazon, it says so, and the few specifications sitting behind a Seller Central login are marked.
Set your floors once, keep your offers inside Amazon's band automatically, and spend the time you save on the images instead.
