Merchant Center guide

The Shopify product taxonomy, explained

One category per product. The right attributes behind it. That is what Google and AI read.

1

Shopify category

You pick one category per product.

2

Category metafields

Shopify unlocks the attributes for that category.

3

Sales channels

Google and other channels read the category and attributes.

4

Search and AI

Shoppers filter, compare and ask AI using that data.

What it looks like in Shopify

Category
Apparel & AccessoriesClothingClothing TopsT-Shirts
Category metafields
ColorNavy
SizeS, M, L, XL
FabricOrganic cotton
Sleeve lengthShort

Examples by industry

Clothing

Apparel & AccessoriesClothingClothing TopsT-Shirts
ColorSizeFabricTarget genderAge groupNecklineSleeve length

Every variant needs its own colour and size. Google requires them for clothing.

Nutrition

Health & BeautyHealth CareFitness & NutritionVitamins & Supplements
FlavorDietary preferencesProduct formIngredientAge group

Flavour and diet tags (vegan, gluten free) are what shoppers filter and ask AI about.

Fitness

Sporting GoodsExercise & FitnessWeight LiftingFree Weights
WeightMaterialColorSuitable forActivity

Weight and material are the first things buyers compare. Put them in attributes, not just the title.

Watches

Apparel & AccessoriesJewelryWatches
Watch movementBand materialCase materialDisplay typeTarget genderWater resistance

Movement and materials split cheap fashion watches from premium ones. Fill them in.

Category names and attributes can change. Always pick from the live list in your Shopify admin.

Product category

  • Shopify's fixed list
  • One per product
  • Unlocks category attributes
  • Maps to Google

Product type

  • Your own words
  • Great for collections
  • Useful for reporting
  • Splits Google Ads campaigns

How to set it up

01

Open a product

In Shopify admin, find the Category field.

02

Pick the deepest match

Search the list and choose the most specific category.

03

Fill the attributes

Complete the category metafields that appear.

04

Bulk edit the rest

Use bulk editor or an import to apply it across products.

05

Check Merchant Center

Make sure products sync with no category issues.

Common mistakes

Leaving the category blankSet a category on every product.
Stopping at "Clothing"Go to the deepest level, like T-Shirts.
Using product type as the categoryProduct type is your label. Category is Shopify's list.
Ignoring category metafieldsFill colour, size, flavour, material and more.
Attributes only in the titlePut them in structured fields too.

Selling on Google too? Read our Google product taxonomy guide.

Shopify product taxonomy FAQs

What is the Shopify product taxonomy?

Shopify's standard list of product categories. Each category comes with its own set of attributes, such as colour, size or flavour.

Is it the same as the Google product taxonomy?

No. Shopify has its own list, but it is built to map across to Google's categories when products sync to Google Merchant Center.

What is the difference between category and product type?

Category comes from Shopify's fixed list. Product type is a free-text label you make up, useful for collections and reporting.

What are category metafields?

Structured attributes Shopify suggests for each category, like fabric for clothing or flavour for supplements. They power filters and feed data.

Does the category affect Google Shopping?

Yes. It helps Google place your product correctly and decides which attributes it expects, like size and colour for clothing.

Does it help with ChatGPT and AI search?

Clear categories and complete attributes make your products easier for AI shopping tools to understand and recommend.

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