I’m a Redirection merchant. What do I need to do in order to support 3D Secure 2?

In the framework of 3D Secure 2, merchants are strongly advised to collect and share transaction information with issuing Banks, in order to increase the chance of “frictionless flow” and to reduce the percentage of cart abandonment. If you connect using the Redirect method, there are additional parameters that you need to send so that consumers can enjoy the optimal user experience. Learn more about the additional information in the below question.