Authenticate payments with 3D Secure

On September 14, 2019, the Revised Payment Service Directive, also known as PSD2, was implemented in all countries in the European Economic Area (EEA). PSD2 requires most online transactions within the EEA to have customer authentication. To be compliant, Shopify processes credit card transactions in the EEA by using 3D Secure, which is a payment authentication method.

This guide describes the 3D Secure authentication process and how to update your sales channel app so that it supports payment authentication by using 3D Secure. The mutations in this tutorial that complete checkouts are available only for sales channels.