Shopify custom data · local demonstration
One shared size chart.
Two product pages.
App-owned product metafields hold item-specific specifications. A single app-owned metaobject stores fit guidance reused by both fictional products.
Ridge Shell Jacket
Material and waterproof rating live on this product. Missing insulation data has a visible fallback.
Open product view 02 / ProductAlpine Grid Fleece
Its material and insulation weight are independent values attached to the fleece product.
Open product view 03 / Shared recordInspect the reusable chart
Both pages resolve the same size-chart metaobject through their product reference.
Inspect record 04 / After editChange the chart once
The updated fit note and measurement appear on both product pages. Product specifications remain unchanged.
View both productsSource files
Inspect the implementation
The definitions establish the app-owned schema first. The GraphQL examples then upsert one record, write product values and references, and read them back.