How to fix seo product missing gtin on Wix
Add a GTIN (and/or MPN) field to your Product structured data so Google can match your listings to its product knowledge graph for rich results and Google Shopping.
Steps for Wix
- Open the Wix Editor → Wix Stores → Products → [select a product].
- In the product settings panel, look for the 'Additional Info' or 'SKU & Barcode' section and enter the GTIN in the 'Barcode' field.
- Wix eCommerce automatically includes this value in the Product structured data it generates — no code editing required.
- For MPN, add a Custom Field via Catalog → Products → Custom Fields, label it 'MPN', and populate it per product. Then contact Wix support or use Velo (Wix's dev platform) to inject the MPN into the JSON-LD via a Velo page code block.
- Verify by using Google's Rich Results Test on the live product URL.
What is seo product missing gtin?
A GTIN (Global Trade Item Number) is the universal barcode identifier printed on a product — this includes UPC (North America), EAN (Europe), ISBN (books), and others. An MPN (Manufacturer Part Number) is the alphanumeric code a brand uses to identify a specific product variant. When you sell a product that already exists in the real world, Google expects you to declare one or both of these identifiers inside your page's Product structured data (schema markup). Without them, Google cannot confidently connect your product listing to its global product database.
GTINs unlock Google's richest product features: price-comparison panels, Google Shopping free listings, "See buying options" carousels, and AI-powered product matching in Search Generative Experience. Stores with verified GTINs appear in far more commercial queries and enjoy higher click-through rates because their listings carry seller ratings, price, and availability directly in search results. Missing GTINs also mean your products are simply skipped when Google builds its product knowledge graph — your competitors who supply GTINs get those placements instead. For branded or commodity products, a missing GTIN is one of the most impactful omissions you can fix for organic revenue.
See the complete Seo product missing gtin guide for every platform and the full background.
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