This endpoint is used to add or update data about the current transaction as a whole.

Param NameRequiredTypeNotes
cart_valueNoIntegerThe total value of the cart in cents
cart_item_countNoIntegerThe total number of items in the cart
promoNoStringPromo code applied to the cart
return_urlNoStringThe unique url to return to the cart page
order_numberNoStringExternal ID for the order


Any additional params will be treated as strings and added to the metadata field of the cart.