Knowledgebase: General Questions
What is the difference between a real-time processing gateway and a real-time processing gateway with instant payment notification?
Posted by Michael G.K on 30 August 2008 03:30 AM

A real-time processing gateway is considered a "standard" gateway. The customer and credit card information is passed to the Merchant Account provider and the response from the provider is handled by the Cart. So the transaction is seamless to the end user. and VeriSign are examples or real-time gateways.

Real-time Processing - Instant Payment Notification Methods (with back-processing) are slightly different in the customer information is sent to a third-party and the transaction is processed on their site. For example, if you selected PayPal as your transaction method the user would be moved over to the PayPal site to complete the order. Once the order is completed, they will automatically be sent back to your site. PayPal and would fit in this category.

Both methods are acceptable and both authorize a card real-time. But the user experience is slightly different.

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