Optional product data
Start with ordinary inputs
Section titled “Start with ordinary inputs”Product titles, prices, stock and purchase buttons use Shopify product settings. Normal shopping does not require metafield definitions.
Write the size chart in the product description and show it with the Measurements & fit block, and use ordinary input fields for specifications, comparison tables and credits. Data entered into a product template is shared by products using that template. Do not enter product-specific measurements into a shared chart.
When information differs by product
Section titled “When information differs by product”Add custom metafields only when you need per-product information such as production lead time. You do not need to enter namespaces or keys in the theme settings.
- Check the definitions list and create the required definition and type in Shopify admin.
- Enter each product’s values in the product editor.
- Display the corresponding section and verify the product-specific content.
Priority differs by feature. Preorder display checks an explicit variant value, then a product value, then a compatibility tag.
Updating an existing store
Section titled “Updating an existing store”Compatibility readers can read previously saved mappings. Do not rely on removed settings surviving a theme-editor save. Before applying this version to an existing store, back up the original data, migrate to custom, and verify the storefront. No automatic data deletion or migration is implemented.
Next steps
Section titled “Next steps”- Definitions list — optional fields and types
- Admin setup guide — definitions, values, then display
- Sample data — an example of a size chart in the product description
- Delivery data and AI chat — verify display and answers