Will SEPA transactions require SCA?
Problem Statement
This article helps you understand whether SEPA transactions require SCA.
Solution
Since SEPA transactions have multi-level authentication, they already meet the standards set by SCA. Hence all SEPA transactions are exempt from 3D Secure (3DS). Also, transactions going through PayPal Express checkout and Amazon Payments are exempt for the same reason.
If you wish to know more about 3DS and how Chargebee is handling it, see the Strong Customer Authentication guide for SaaS.