Basic authentication header of the form Basic <encoded-value>, where <encoded-value> is the base64-encoded string username:password.
Customer's name
Customer's email address
Customer's country. ISO 3166 standard alpha-2 code. eg: SG, IN, US, etc.
The unique reference_id on your system representing the customer
Phone contact details
Customer's billing details
Customer's shipping details
Set of key-value pairs that can be attached to the object (JSON string format)
"{\"key1\": \"value1\", \"key2\": \"value2\"}"