Listing one product on Amazon, Walmart, eBay, Etsy and Shopify without rewriting it five times

To list one product on Amazon, Walmart, eBay, Etsy and your Shopify store without rewriting it five times, keep one master listing that holds the product's facts and make each marketplace's version from it. The facts (what the product is, its sizes, materials, origin, claims, warnings and colours) stay identical everywhere; only the title length, the structure, the images and the fields change to each marketplace's rules.

Selling one product in five places sounds like five times the reach. In practice it often means five times the writing: a 75-character title for Amazon, an 80-character one for eBay, 13 tags for Etsy, key features for Walmart and a product page for your Shopify store, each with different image rules. Most sellers start by copying one listing into the others and trimming until the forms accept it. The listings go live, but they slowly drift apart, and a buyer who compares them finds two different products.

This guide sets out what really has to change between marketplaces, what must never change, and a way of working that keeps one source of truth and turns it into each marketplace's version.

What changes between Amazon, Walmart, eBay, Etsy and Shopify listings?

The differences between marketplace listings fall into four groups: length, structure, images and fields.

Length. Title limits alone vary widely:

A title written for Walmart has to lose half its length for Amazon, and the words that go are not always the same.

Structure. Amazon reads a title, Item highlights, five bullets and backend search terms. Etsy reads a title, 13 tags and attributes. eBay leans on item specifics, the structured fields its filters use. Walmart has key features. The same facts have to be arranged differently for each.

Images. The rules on words and graphics differ most:

• Amazon: the main image is the product alone on pure white, with no added text; words are allowed on the images after it.
• eBay: no added borders, text, artwork or watermarks on any photo.
• Etsy: original photos of the actual item, not renderings or stock photos.
• Walmart: a pure white main image, square, and at least four images.

So a labelled feature image that works on Amazon is not allowed on eBay at all, and an AI-drawn scene that suits Walmart does not suit Etsy.

Fields. Each marketplace has different attributes, item specifics and categories, and the same fact (a material, a size, a colour) goes into a differently named field in each.

What must stay the same on every marketplace?

A product's facts must be identical on every marketplace, because everything that changes between them is presentation:

• What the product is, and what is in the box.
• Sizes, weights and capacities, in the same units.
• Materials and fibre content.
• Country of origin. For textiles, US law asks internet listings to say whether the product was made in the USA, imported, or both, matching the label.
• Claims, such as "waterproof", "organic" or "Made in USA", and the proof behind them.
• Warnings and age grades.
• Colours and variations.

If any of these differ between two of your listings, one of them is wrong.

Why do conflicting details between listings cost sales?

Conflicting details cost sales because shoppers compare. Salsify's 2025 survey of US and UK shoppers reports that 54% had abandoned a purchase because of conflicting product information. A size on Amazon that differs from the size on your store is exactly that.

Walmart acts on conflicts directly:

• It bars a "Made in USA" claim when the images, packaging and attributes conflict.
• For supplements, the label, the product information and the images must agree with each other.
• Its AI content guidelines say "All claims, images, and descriptions must match the actual product including size, color and other features."

Walmart also scores listings on content and discoverability among other measures, through its listing quality dashboard, so a thin or inconsistent listing shows up in your numbers.

How do you list one product on several marketplaces without rewriting it?

Separate the facts from the presentation: write one master listing, then make each marketplace's version from it.

1. Write the master listing once. One document per product holds every fact: the full product name, what it is, every measurement, materials, origin, colours, what is in the box, the claims you can prove, warnings, care, and the keywords you researched. It is not written for any marketplace. It is the source of truth.

2. Make each version from the master. For each marketplace, take the facts you need and arrange them to its structure and limits:

3. Never change a fact in a version. If a fact is wrong, fix it in the master and update every version from it. Editing a size directly on one marketplace is how listings drift apart.

A worked example: a knitted beanie in five places

Say you sell a knitted beanie. The master holds the facts once:

• Brand name, "knitted beanie", ribbed, with a fold-over cuff
• 100% merino wool, imported
• One size, with the stretched and unstretched measurements
• Six colours
• Hand wash cold, dry flat
• Keywords from your research: "merino wool beanie", "ribbed beanie", "winter hat", "cuffed beanie"

From that one document, each version takes its shape:

• Amazon. A title of 75 characters or fewer: the brand, "Merino Wool Ribbed Beanie", and "Cuffed Winter Hat". Item highlights carries "one size", "hand wash" and the fibre. The five bullets cover warmth, fit with measurements, care, the colours, and what is in the parcel. The backend search terms take synonyms such as "toque" and "skull cap".
• eBay. A title of 80 characters or fewer with the same core words, and item specifics for the material, size, colour and style, which eBay's filters read.
• Etsy. A title of 140 characters or fewer that reads naturally, 13 tags built from the keyword list, and the attributes for colour and material filled in.
• Walmart. A title, key features and a description, with the fibre content and the country of origin stated, as our page on textile rules explains.
• Shopify. A product page with the full description, the care line and every colour.

On every version, the facts are identical: merino, imported, one size, the same measurements. Only the arrangement changes. And if you later switch to a wool blend, you change one line in the master and every version follows, along with the fibre content US law asks textile listings to show.

How do you make each marketplace's images from one set of photos?

Take one complete set of photos of the real product, then build each marketplace's image set from it, the same way each version of the words comes from the master listing:

• Amazon: main image on white, then lifestyle, labelled features, dimensions and box contents.
• Walmart: main image on white, square, with at least four images.
• eBay: your photos with nothing added: no text, borders or badges.
• Etsy: original photos of the real item; leave out anything where the product is a rendering.
• Shopify: any mix, but keep a clean main image if your store feeds Google Shopping.

Our shot list covers the photos to take once, and our guide to Amazon's image requirements covers the strictest set.

Where do keywords go on each marketplace?

The phrases shoppers type are mostly the same on every marketplace, but where they go differs, so keep one keyword list in the master listing and place it to each marketplace's structure:

• Amazon: the main phrase in the title, others in Item highlights, bullets and backend search terms.
• Etsy: the main phrase in the title, the rest spread over 13 tags. See our guide to Etsy tags.
• eBay: the main phrase in the title, the rest in item specifics.
• Walmart and Shopify: the title and the description.

How do you keep multichannel listings current when the product changes?

Update the master listing first, then every marketplace's version on the same day. Products change: a new colour, a different supplier, a revised label. When they do:

1. Update the master first.
2. List every marketplace the product is on, and update each version from the master on the same day.
3. Replace the images that show the old version, on every marketplace.
4. Check claims and warnings again. A new supplier can mean a new country of origin or a new material.
5. Keep a dated note of what changed, so you can answer a marketplace's question months later.

If the change is large, a new size or a new design, Amazon treats it as a new product, not an edit. See our Amazon listing checklist.

How do you keep variations consistent on every marketplace?

Name colours the same way, photograph them in the same light and keep one row per variation in the master listing. Variations are where multichannel listings drift most. Each marketplace groups variations differently, and each names colours and sizes in different fields. Three habits help:

• Name colours the same way everywhere. If the master says "forest green", no version says "dark green".
• Photograph every colour in the same light, so the swatch on one marketplace matches the image on another.
• Keep one row per variation in the master, with its SKU, colour, size and stock, so a sold-out colour is updated everywhere at once.

What should a multichannel listing tool do?

A multichannel listing tool should hold the master listing and produce each marketplace's version from it. Spreadsheets work for a handful of products; past that, a tool saves the most time, and the questions to ask any multichannel listing tool are simple:

• Does it keep one set of facts, so a change reaches every marketplace?
• Does it know each marketplace's limits and image rules, or do I have to?
• Does it write each version, or only copy and trim?
• Does it produce the images each marketplace accepts, or only upload the ones I have?
• Can I check and change every version before it goes live?

How Commicorn helps

Commicorn is built around one listing and many marketplaces:

• One set of answers. You describe the product once: its facts, sizes, materials, claims and warnings.
• A version for each marketplace. The title, bullets or key features, description, tags and search terms are written to each marketplace's limits and rules, from the same facts, for the 11 marketplaces we support and your Shopify store.
• A single set of photos, each marketplace's images. Your photos become each marketplace's image set: words on images where they are allowed, plain photos for eBay, and images where AI drew your product kept out of your Etsy folder.
• Upload files filled in. On the Growth plan and above, your marketplace upload templates are filled for you.

Create one listing and get it shaped for each marketplace you sell on. Start free.

Questions sellers ask

What is the title limit on Amazon, Walmart, eBay and Etsy?

Amazon allows 75 characters in most categories since 27 July 2026, with 125 more in Item highlights. Walmart allows 150 characters, eBay 80 and Etsy 140.

Can I use the same images on Amazon and eBay?

Not all of them. Amazon allows words on the images after the main image, but eBay does not allow added borders, text, artwork or watermarks on any photo, so a labelled feature image made for Amazon stays off eBay.

Should my product details be the same on every marketplace?

Yes. Sizes, materials, origin, claims, warnings and colours must match everywhere. Walmart bars a "Made in USA" claim when the images, packaging and attributes conflict.

Do I need different keywords for each marketplace?

Mostly not: the phrases shoppers type are mostly the same everywhere. Where they go differs: Amazon's title and backend search terms, Etsy's 13 tags, eBay's title and item specifics, and Walmart's and Shopify's title and description.

Is a new version of my product a new Amazon listing?

Yes, when the change is large, such as a new size or a new design: Amazon treats it as a new product, not an edit. Our Amazon listing checklist explains the rule.