Payment service integration is done by either implementing a payment button, or by embedding a selection of payment methods in a website to enable the immediate payment of an order. The information of completed payment is instantly relayed back to the website.
When using the E2 interface, the payment data is created as a form on the web applications page. The consumer sends this form to the payment service. The payment is then completed in the web browser as an immediate result of the customer’s actions.
Payment page bypass option for the E2 interface allows bypassing the Paytrail payment page and can be used to implement bank payment buttons directly on a website.