Use Act to carry a selected product and fulfillment path through review, payment, and confirmed delivery.
Lock the order details
Provide the exact variant, quantity, merchant, destination, delivery window, return requirements, and maximum total price.
Review the exact transaction
For payment_required or approval_required, show the item, seller, subtotal, fees, taxes, delivery terms, and expiry. Do not silently accept substitutions or price changes.
Confirm fulfillment
Complete only after the Action returns a confirmed order or an explicit terminal outcome with the relevant receipt and delivery details.
Explore this use case in Darwin Last modified on September 21, 2026
