ScaleApps: Custom Fields

This app adds custom fields to your Shopify products, line items, carts, and orders when you need to capture more information than the default checkout provides. Create rules to set fixed values, build dynamic values from product, variant, and customer details, or let customers fill in their own text for gift messages, engraving instructions, or special notes directly on the product page. Target which products get custom fields using conditions based on collections, tags, product type, or customer segments. Match rules using all or any logic to control exactly where fields appear. No theme code changes needed—the app handles everything automatically. All custom field data saves to orders in Shopify admin and flows through the API to your ERP, fulfillment systems, and other integrated tools, ensuring critical order information reaches wherever you need it.