SafeShip: Address Validator

SafeShip helps Plus stores save money by preventing delivery failures due to customers entering an invalid shipping address. With our checkout blocks, you can easily add address validation or PO box blocking to your checkout in a few clicks. The app works in the checkout, so there's no need to have the customer update their shipping address after the order is placed. NOTE: You must be on Shopify Plus and have Checkout Extensibility enabled to use this app.