The session lock during the Paytrail payment prevents order errors

The AI Commerce platform's integration with Paytrail has been enhanced with an improvement that increases security: the customer session is automatically locked during the payment service interaction. This prevents situations where a customer could alter the contents of their cart, delivery method, or other information affecting the total order amount while a payment transaction is ongoing.

Thanks to the lock, the order details remain consistent between the online store and the payment service. This prevents silent errors where an order might be created in the payment service with different details than what the online store accepts, which could lead to the payment being declined due to fraud risk.

If a customer tries to modify the order while the payment is in progress, the system displays a clear error message instructing them to first cancel the payment. The payment can be canceled either through Paytrail or the bank's own cancel button, which immediately releases the session, allowing the order to be modified normally.

If a customer closes the banking service without canceling, the session remains locked for another 10 minutes after leaving the online store. During this time, any modification attempt will result in an error message informing them of the remaining wait time.

This improvement reduces the possibilities of misuse and the number of accidentally placed orders, enhancing both the security of the payment process and the customer experience.