PayPal XMLPay - 2009 Guía de usuario Pagina 12

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XMLPay Overview
XMLPay Messaging
1
12 XMLPay Developer’s Guide
Business-to-Business
When used in support of B2B transactions, the Seller does not typically initiate XMLPay
requests. Instead, an aggregator or trading exchange uses XMLPay to communicate business-
focused purchasing information (such as level 3 corporate purchase card data) to a payment
gateway.
In this way, the Trading Exchange links payment execution to other XML-based
communications between Buyers and Sellers such as Advance Shipping Notice delivery,
Purchase Order communication, or other B2B communication functions.
XMLPay Messaging
The highest-level XMLPay structures represent payment transaction requests and responses.
XMLPay
Payment
Gateway
Sellers
Buyers
Payment
Processor
Financial
networks
Trading
Exchange
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