2013

Table Of Contents
Name-Value Pair API Developer Guide February 01, 2013 55
6
ExpressCheckout API Operations
Express Checkout API operations include SetExpressCheckout,
GetExpressCheckoutDetails, and DoExpressCheckoutPayment.
Callback API Operation
Updates the PayPal Review page with shipping options, insurance, and tax information.
Callback API Request Message
Callback Request Fields
Field Description
METHOD (Required) Must be Callback.
TOKEN (Optional) A timestamped token, the value of which was returned by
SetExpressCheckout response.
Character length and limitations: 20 single-byte characters
CURRENCYCODE (Required) The three-character currency code for the transaction from the Express
Checkout API. Default: USD