Momiji Address Guard

Momiji Address Guard is an embedded Shopify app that validates checkout addresses to prevent shipping issues. Merchants can block PO boxes, parcel lockers, specific ZIP/postal code ranges, and unsupported regions before customers complete their orders. The app lets you configure address validation rules, test them in the built-in simulator, and publish them directly to Shopify checkout without editing theme code. You can preview changes, roll back to previous configurations, or restore settings when needed. Designed for predictable fulfillment operations, the app includes allowlist and exception rules for flexible address management. It doesn't store shopper shipping addresses, keeping customer data secure while helping you control where orders can be delivered.