Add custom fields to products, carts, and orders. Set values by rule, build them from store data, or let customers enter their own on the product page.

• Add custom fields to line items with rules you set — no theme code required
• Build field values from product, variant, & customer details for an order
• Let customers add gift messages, engraving, or notes on the product page
• Target rules by product, collection, tag, type, or customer with match - all/any
• Fields save on the order in Shopify admin and are available via the API