Returns a token, expiry date/time and checkout URL if successful.
Checkout token to be used to complete payment.
The UTC timestamp of when the checkout token will expire, in ISO 8601 format.
In addition to the PUT/POST Errors applicable to all POST endpoints, the following errors are specific to Create Checkout:
HTTP Status Code
One or more required fields were missing or invalid.
One or more Money objects may have contained a currency that differs from the merchant's account currency.