• France
status page
Merchant Back Office
assistance
FAQContact support
Search
Categories
Tags
English
French
English
Homepage
Use cases
Create a payment
Create an installment payment
Create a multi-card (split) payment
Create a payment by Alias (Token)
Create a payment link
Create a recurring payment
Manage subscriptions
Manage your transactions (refund, cancel...)
Analyze your reports
API docs
Embedded Form
REST API
Hosted payment
Mobile payment
File exchange
Logos
Push mail
Snippets
Payment methods
Plugins
Guides
Merchant Back Office
Functional guides

Establishing interaction with the payment gateway

The interaction with the payment gateway is described in the Hosted Payment Page guide:

The merchant website and the payment gateway interact by exchanging data.

To create a payment, this data is sent in an HTML form via the buyer’s browser.

At the end of the payment, the result is transmitted to the merchant website in two ways:

  • automatically by means of notifications called Instant Notification URLs (also known as IPN or Instant Payment Notification);
  • Via the browser when the buyer clicks the button to return to the merchant website.

To guarantee the security of the exchange, the data is signed with a key known only to the merchant and the payment gateway.

© 2024 {'|'} All rights reserved to Systempaylegal
2.92.0-doc-1.11