PayPal Express Checkout - 2012 Guía de usuario descargar pdf (Pagina 57)

Express Checkout Advanced Features Guide April 2012 57

Reference Transactions

A reference transaction is a financial transaction from which subsequent transactions can be

derived. For example, a buyer can make a purchase on your site and the PayPal transaction ID

becomes the ID of a reference transaction that can later be used to initiate another transaction.

Introduction to Reference Transactions

Recurring payments using reference transactions enables you to handle payments for varying

amounts of money on a varying schedule. The buyer can sign up for recurring payments as

part of the Express Checkout flow or sign up before making a purchase. Consider the

following examples:

 A buyer purchases a mobile phone and selects a carrier. The buyer pays for the phone using

Express Checkout and agrees to pay monthly for the service.

 A buyer downloads a music video and pays for it with Express Checkout. During checkout,

the buyer agrees to make a payment whenever the account balance exceeds a specified

minimum amount.

 A buyer agrees to pay monthly for utilities, such as gas or electricity. The buyer makes no

payment at the time of agreement. PayPal deducts payments monthly for actual use.

These examples represent payment transactions that reoccur periodically, either for a specific

time period or when transactions reach a certain threshold. The amount of each transaction

varies by use. These kinds of recurring payments are well-suited for processing with reference

transactions, which are used in the same way as reference transactions in credit card

processing. When implementing recurring payments using reference transactions, you control

transaction initiation and the transaction amount. You can also include payment for multiple

items in one checkout.

NOTE: PayPal must enable you to use reference transactions. Contact PayPal for details.

Reference Transactions

A reference transaction is a financial transaction from which you can derive subsequent

transactions. For example, a buyer makes a purchase on your site, and you use the PayPal

transaction ID or reference transaction ID later to initiate another transaction. In the music

video example, you might use the transaction generated by the purchase to initiate a monthly

transaction for renting videos from the service. Similarly, you can use the transaction for the

first download to generate another transaction for other downloads.

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PayPal Express Checkout - 2012 Guía de usuario Pagina 57