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Use Cases

Validate Addresses on Apple Pay, Google Pay & Shop Pay Checkout

Many merchants assume checkout validation requires Shopify Plus—it doesn't. Address Ninja validates addresses from Apple Pay, Google Pay, Shop Pay, and PayPal Express at checkout, so house numbers, PO Boxes, and postal code rules apply even when customers skip the standard checkout form. Merchants discover that express checkout was letting bad addresses through; Address Ninja closes that gap on all Shopify plans.

Below we cover what express checkout address validation means for Shopify merchants, how Address Ninja handles the setup, and links to setup guides and detailed articles.

Address Validation vs. Address Verification: Address validation checks that an address meets format and business rules: house number present, postal code in the correct format, no PO Box, no blocked characters or restricted postal codes. It does not check whether the address actually exists. Address verification (sometimes called address autocomplete or address lookup) uses external services like USPS, Google, or Loqate to confirm that a street, city, and postal code combination is real and deliverable. Address Ninja performs validation — it enforces your rules at checkout — but it does not perform verification. If you need to confirm that an address exists, you'll need a separate verification or autocomplete service.

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Install Address Ninja on Shopify and see the difference today.

Install Address Ninja on Shopify