Rock - Zipcode Checker lets merchants define delivery zones using pincodes/zipcodes mapped to Shopify collections. Customers can check delivery availability on the product page before adding items to their cart. Create pincode groups, assign collections, and import codes manually or via CSV. The app allows merchants to customize widget messages and optionally disable the Add to Cart button for non-serviceable areas, helping reduce failed deliveries, returns, and support requests.

• Product-page widget lets customers check delivery by pincode or zipcode.
• Map pincode groups to Shopify collections for collection-based delivery.
• Add pincodes manually or import many at once using a CSV file.
• Customize widget text, button label, and available/unavailable messages.
• Optionally disable Add to Cart for pincodes outside your delivery areas.