Walmart Marketplace

Walmart listing optimization for the age of AI shopping.

Walmart's AI assistant Sparky now answers shoppers from your product data and reviews. Cosmy rewrites your listings to Walmart's own content rules, so search, shoppers and AI all understand what you sell.

Request a Walmart analysis See what changes on Walmart

Free 15-minute call. Our team reviews your Walmart listings by hand.

Already optimizing Walmart catalogs with brand partners.

Walmart shoppers now ask before they search.

+40%

more spent per order by customers who shop with Sparky than by those who don't

John Furner, Walmart CEO, Q2 FY27 earnings call, Aug 2026

weekly active Sparky customers, year over year

Walmart Connect, Goldman Sachs conference, Sept 2026

1 in 2

Walmart app users have already used Sparky

Walmart Q4 FY26 earnings call, Feb 2026

Walmart says Sparky is moving shoppers "from traditional search to intent-driven commerce." Sparky answers from your product data and reviews. Vague titles, thin features and missing attributes leave you out of the answer.

Copy-paste from Amazon breaks on Walmart.

We took AG1's live Amazon listing, already written for Amazon's new 75-character titles, and measured it against Walmart's published content rules.

AG1 Athletic Greens Travel Pack, 14 count

amazon.com listing Walmart's rules

Title
Half the space unused
74 characters
Walmart allows 150
Amazon caps titles at 75 characters since July 2026.
Item highlights
Needs a new home
122 characters of details
No Item highlights field on Walmart
These details must move into the title and key features.
Key feature length
Over the limit
391 characters (longest)
Walmart max: 80 each
5 of 5 over the limit
Number of key features
OK
5 bullets
Walmart: 3 to 10
Hidden keywords
Needs a change
Amazon backend search terms
No equivalent field documented

What Cosmy delivers

A Walmart title under 150 characters, 3 to 10 key features under 80 characters, a one-paragraph description and attributes filled.

Example Walmart title123/150

AG1 Athletic Greens Superfood Powder with Probiotic and Digestive Enzymes, 75 Vitamins, Gluten Free, Travel Packs, 14 Count

Live amazon.com listing for AG1 (B0G16C24NG), read on Oct 24, 2026. Rules from Walmart Marketplace Learn, Product detail page guidelines (Oct 2026).

Built around Walmart's Listing Quality score.

Walmart grades every listing on five parts, including content and reviews. Cosmy rewrites your content, finds the keywords Walmart shoppers use, checks the questions Sparky gets asked and turns reviews into answers.

We rewrite

Content

Title, key features, description and attributes, written to Walmart's rules and to the questions shoppers ask.

Example Walmart title123/150AG1 Athletic Greens Superfood Powder with Probiotic and Digestive Enzymes, 75 Vitamins, Gluten Free, Travel Packs, 14 Count

TitleUnder 150 characters
Key features3 to 10, under 80 characters each
DescriptionOne paragraph, 150+ words
AttributesEvery one that applies, filled

We research

Walmart keywords

We find the most relevant search terms for your product and place them where Walmart reads them: title, key features and description. Walmart-compliant, so no stuffing, no competitor or retailer names.

Example: AG1 Travel Pack

greens powderTitle
superfood powderTitle
multivitaminKey features
gluten freeKey features

No hidden keyword field on Walmart: every term lives in the visible text.

We check

Sparky questions

Shoppers ask Sparky questions before they buy. We check which ones your listing answers, and write the missing answers in, the same way Cosmy does for Rufus on Amazon.

Example questions: AG1 Travel Pack

Is it vegan?Answered
How does it taste?Answered
How many servings are in the pack?Answered
Is it gluten-free?Answered
Can teenagers take it?Answered
Is it safe during pregnancy?Not in the listing

We use

Ratings & reviews

We read what reviewers keep saying and answer it in your listing, the way Shopper Voice does on Amazon.

Example: what AG1's 33.6K Walmart reviews talk about most

Flavor6,774 reviews
Energy levels3,197 reviews
Value for money2,496 reviews
Morning use1,281 reviews

Review topics from Walmart.com, Oct 24, 2026.

Reviewers ask
Cosmy finds the pattern
Your key features answer it

From Amazon copy to Walmart-ready in three steps.

1
Send your products
A Walmart link, an Amazon ASIN or your catalog file. One product or hundreds.
2
We analyze them
The same method Cosmy uses on Amazon: does the copy cover what shoppers evaluate, and can it answer the questions an AI assistant asks? Then Walmart's own rules on top.
3
Get publish-ready copy
Titles, key features, descriptions and attributes in a file ready to upload to Seller Center.

Same product, different rules.

Rule

Amazon

Walmart

Title
AmazonUp to 75 characters (since July 27, 2026)
WalmartUp to 150 characters
Extra details
AmazonItem highlights, up to 125 characters
WalmartNo equivalent field: details go in the title and key features
Bullets / key features
AmazonUp to 5 bullet points
Walmart3 to 10 key features, 80 characters max each
Description
AmazonProduct description or A+ content
WalmartOne paragraph, at least 150 words (varies by category), no lists
Hidden keywords
AmazonBackend search terms, under 250 bytes
WalmartNo equivalent documented: put keywords in title, features and description
Main image
AmazonPure white background
WalmartSeamless white background, 2,200 × 2,200 px recommended, at least 4 images
AI assistant
AmazonAlexa for Shopping / Rufus
WalmartSparky

Rules as published by Amazon Seller Central and Walmart Marketplace Learn, October 2026. Category rules can differ.

Walmart questions, answered.

Still unsure? Book a demo.

Does the Cosmy app analyze Walmart listings today?

Today our team runs Walmart analyses by hand, with the same engine and method Cosmy uses on Amazon. Self-serve Walmart in the app is next, and the requests we get decide how soon. Book a call and we will review your listings.

What is Walmart's Listing Quality score?

It is Walmart's own grade for each listing, shown in Seller Center. It combines five parts: content, ratings and reviews, price competitiveness, shipping speed, and being published and in stock. Your catalog score is the average of your listings.

Can I reuse my Amazon listing on Walmart?

Not as is. Since July 2026, Amazon titles stop at 75 characters and the extra details sit in Item highlights, a field Walmart doesn't have. Walmart allows 150-character titles, caps key features at 80 characters each and wants a one-paragraph description. Amazon's backend keywords don't carry over either.

Does Walmart have backend search terms like Amazon?

Walmart's guidelines do not document an equivalent field. Its advice is to place relevant keywords in the title, key features and description, and to fill every attribute that applies.

How do you find keywords for Walmart?

We start from the words shoppers use for your product type, check which ones your listing already covers, then place the most relevant ones in the title, key features and description, within Walmart's rules: no keyword stuffing, no competitor or retailer names. If you share a Search Insights or related keywords report from Seller Center, we use it too.

Can you guarantee my products show up in Sparky?

No one can. Walmart does not publish how Sparky ranks products. What it does say is that Sparky draws on product data and reviews, so complete, accurate and clear listings are the best input you can give it.

Which marketplaces does Cosmy cover?

Amazon on 8 marketplaces in the app today, and Walmart US with our team. eBay is coming next.

How much does a Walmart analysis cost?

It depends on how many products you sell. On the call we look at your catalog together and send you a quote.

Get your Walmart listings ready for Sparky.

Tell us about your catalog. We will review a few listings with you and show what changes on Walmart.

Request a Walmart analysis

Free 15-minute call. No commitment.