Adds a billing address to an existing Checkout.
Either email or countryCode is required.
Represents state or province.
Coupons applied at checkout level.
Shipping cost before any discounts are applied including tax.
Shipping cost before any discounts are applied excluding tax.
Handling cost for all consignments including tax.
Handling cost for all consignments excluding tax.
Subtotal of the checkout before applying item level discounts including tax.
Subtotal of the checkout before applying item level discounts excluding tax.
The total payable amount, before applying any store credit or gift certificate.
Time when the cart was created.
Time when the cart was last updated.
Shopper’s message provided as details for the order to be created from this checkout