PayPal Adaptive Payments - 2012 Guía de usuario descargar pdf (Pagina 26)

Introducing Adaptive Payments

Preapproved Payments Flow

26 August 7, 2012 Adaptive Payments Developer Guide

2. PayPal responds with a key, called a preapproval key, that you use when you direct the

sender to PayPal, and once the preapproval has been established, whenever you

automatically complete a payment on behalf of the sender.

3. You redirect your sender’s browser to PayPal.

4. After the sender logs in to paypal.com and sets up the preapproval, PayPal redirects the

sender’s browser to a location you specify.

NOTE: The cancel operation is not shown in the above diagram. Cancellation is handled by a

separate cancellation URL to which PayPal redirects the sender’s browser any time

the sender cancels while on paypal.com.

In addition to the steps shown above, PayPal sends an email notifying you and the sender that

the preapproval has been created.

After the sender sets up the approval, you can make payments on the sender’s behalf directly.

The sender is no longer required to log in to PayPal to complete the payment. The following

diagram shows the basic flow of control during a Pay operation:

The following items correspond to the circled numbers in the diagram:

1. Your site or device sends a Pay request to PayPal on behalf of a sender. You can require the

sender to provide a personal identification number (PIN); however, logging in to

paypal.com is no longer required.

NOTE: You must provide a preapproval key that identifies the agreement.

2. PayPal still responds with a payment key that you can use for other API operations, such as

for obtaining details of the payment or for issuing a refund.

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PayPal Adaptive Payments - 2012 Guía de usuario Pagina 26