- Short answer
- No — no page we read names a collection as a source; a market catalog includes or excludes specific products instead.
- What we checked
- The Help Center and shopify.dev catalog pages, the B2B catalog pages and the Markets product page, on September 10, 2026.
- Every market starts full
- Until you change a catalog, all your products are available in every market at your store's default prices.
- Membership moves per product
- A checkbox in the catalog's Products section, a CSV Published column of TRUE or FALSE, or an API call.
- What a collection drives
- A discount's Applies to selector and a product tax override both point at a collection, not at a catalog.
Where does a Shopify market catalog get its products?
Every market already has a catalog — a set of products with optional custom pricing — and it starts full: every product in your store is available in every market, at your store's default prices. Membership moves product by product.
Shopify puts the change on the product, in the catalog's Products section:
By default, all products are included. To exclude a product, select its checkbox, and then click Exclude from catalog.
At scale the shape holds: the catalog CSV carries a Published column per product, TRUE to include and FALSE to exclude, and the Admin API's publicationUpdate mutation adds and removes products by ID.
No page we read on September 10, 2026 — the Help Center and shopify.dev catalog pages, the B2B catalog pages and the Markets product page — names a collection as a product source.
B2B catalogs are a separate object, framed the same way, and how many you can keep active depends on your plan.
What a collection does drive: discounts and taxes
Two rules do take a collection. In an amount-off discount you pick Specific collections under Applies to, and a product tax override can take one too. There the collection is the target a rule points at, while a market catalog holds a publication state on each product.
Reuse has a price: after a tax override is applied to a collection, Shopify says a product you add by hand becomes tax exempt everywhere in your store — the cost of one collection shared across rules.
What happens to a product you leave out of a market?
Exclusion is visible to the shopper. Shopify says that "when a customer searches your store, the results include only products that are published in their market."
So keep the collection as your working list and publish to the catalog as its own step: in the CSV, Published is set row by row, and the catalog needs re-checking whenever the collection changes.
This article was written entirely by AI under human editorial direction. The editor sets the topic and structure, runs multi-stage validation on facts, links, and interactive elements, and verifies the output is useful from a business perspective. All claims are checked against official Shopify sources. Details may change — always confirm critical data at shopify.com.
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