
Shopify Product Variant Schema: How to Mark Up Sizes and Colors with ProductGroup
Learn how to mark up Shopify sizes and colors with ProductGroup schema: Google’s variant rules, a working example, common mistakes and how to test.
SEO Schema Pro is a Shopify schema app that turns your product, collection, page, and
blog data into clean, valid JSON-LD structured data. No theme code. No developer. No
manual markup. Just a store Google can finally read properly.

Learn how to mark up Shopify sizes and colors with ProductGroup schema: Google’s variant rules, a working example, common mistakes and how to test.

Everything Shopify merchants need to know about schema markup — what it is, which types you need, how to add it, and how to test it. Updated for 2026.

If you’re showing star ratings in Google search for your Shopify products, there’s a rule change you need to know about. On July 24, 2026, Google