Payment Gateway Integration

Payment Gateway refers to an E-commerce service that authorizes payments for E-businesses & online retailers. Payment gateways encrypt sensitive information, such as credit card numbers, to ensure that information passes securely between the customer and the merchant.

Working of Payment Gateway:

The entire working of a payment gateway comprises of multiple complex steps.

These steps are as follows,

• Visitor places the order on the website and it is sent to the merchant's web server in encrypted format. This is usually done via SSL (Secure Socket Layer) encryption.
• The transactions details are then forwarded to the concerned Payment Gateway.
• The transaction information is then passed on to the merchants acquiring bank by the Payment Gateway.
• Merchants acquiring bank then forwards the transaction information to the issuing bank (one that issued the credit card to the customer).
• Then the card issuing bank sends a response back to the Payment Gateway. The response includes information that whether the payment has been approved or declined. In case of declination the reason is also sent in the response.
• The response is then forwarded by the Payment Gateway to the merchant's server.
• At merchants server the response is encrypted again and is relayed back to the customer. This allows the customer to know that whether the order has been placed successfully or not.
• The entire process typically takes less than 5 seconds. At the end of the bank day (or settlement period), the acquiring bank (or card issuing bank) deposits the total of the approved funds in to the merchant's nominated account.

Payment Gateway holds the essence of any e-commerce site. One cannot think of making or receiving on-line payments without a Payment Gateway.

Payment Gateway basically refers to an e-commerce service that authorizes payments for e-businesses & online retailers. It, in a way, represents a physical POS (Point-of-sale) terminal located in most retail outlets.

Payment gateways encrypt sensitive information, such as credit card numbers to ensure that information passes securely between the customer and the merchant.


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