Cartwise

Stop answering "where's my order" by hand.

Cartwise is an AI support agent that answers order status, shipping, returns, and product questions on your storefront — automatically, using your store's real data. 14-day free trial.

The *.myshopify.com domain, not your custom domain.
Settings > Apps and sales channels > Develop apps > create an app with read_orders, read_products, read_customers scopes.