Address Validator checks shipping addresses while buyers are still in checkout. It catches typos, missing unit numbers and invalid postal codes, then offers a one-click corrected address. Autocomplete fills Shopify’s native address fields as buyers type. Delivery rules warn or block PO boxes, countries or regions. If an order still goes through to a flagged address, the buyer gets an email in your store’s name to enter a new one. Order history records every check.

• Real-time address verification in checkout with a one-click corrected address
• Address autocomplete inside Shopify's native checkout address fields
• Delivery rules: warn or block PO boxes, specific countries and regions
• Order history with every address check and the buyer's decision on it
• Email buyers a link to fix an address your rules flagged after the order