Live demo with sample data from a made-up store, shop.example.com.
Start free trialGot stuck: kept repeating /checkout/shipping without getting anywhere.
Claude's read of this visit
ChatGPT agent was buying a Trail jacket in size M for its user. It added the jacket to the cart and opened checkout without trouble, then submitted the shipping form nine times in a row. Every attempt came back 422. Checkout v2 replaced the country dropdown with a custom picker that isn't a real form control, so the agent never set a country and the form kept rejecting it. After the ninth try it stopped and handed the task back to its user. A native select for the country, or accepting the country as typed text, would most likely fix it.