Which fields should I send in the payment request for 3D Secure 2?

To ensure a successful 3D Secure 2 integration, it is crucial to provide the correct fields in your payment request. While our 3D Secure API reference covers the basic parameters, the specific fields required depend on your implementation path—whether you are using a native in-app/on-site flow or a redirect flow.

For detailed guidance on which parameters to submit for each scenario, please refer to our dedicated documentation:

• Native 3DS2 Implementation Guide
• Redirect 3DS2 Implementation Guide

In addition to the mandatory fields listed in these guides, we strongly recommend providing all available shopper data. Submitting this information helps the card issuer better assess the transaction's risk, which significantly increases the likelihood of a frictionless authentication and a higher authorization rate.