When you (as a developer, using your own API credentials) are running Express Checkout API calls on behalf of a merchant what variable can you use to pass the merchant's PayPal account email address so that the payment is associated with the merchant's account?
When using Digital Goods for Express Checkout, what value should be passed to the JavaScript method when launching an embedded payment flow?
If you would like to block payments with duplicate invoice IDs, where would you set this requirement?
A customer purchases a shirt for $100 and a jacket for $200. You ship the shirt the same day. but before the jacket is shipped, the customer cancels the jacket after payment has been authorized. Select the correct sequence of operations.
1. DoAuthorization ($100)
2. DoAuthorization ($200)
3. DoVoid($200)
4. DoExpressCheckoutPayment (paymentaction=order)
5. DoCapture
By default (without special permission from PayPal), how many authorizations can be done from an Order transaction?
