Customers can move their delivery to another country, on your terms

If you allow it, customers editing their delivery address can pick another country you ship to, and the form adapts to it: states or provinces, the right postcode label, or no postcode where a country has none. When the new address falls in a different shipping zone, you decide what happens: refuse the change (the default), or keep the original shipping fee after the customer sees both amounts and confirms. Moves within the same shipping zone go through without a shipping question, moves to the United Kingdom work whenever your zone covers every UK region, and stores on Shopify's market-driven shipping keep the original fee and have the order flagged for review. "Keep edits inside the original country" is on by default, and locking the country reaches a customer's form even if their page was already open.