How to Plug an Existing User Store into WSO2 Identity Server?
Are you someone who already has a legacy system in place and wants to migrate to a modern authentication system with Identity and Access Management (IAM) features? The first thing you need to consider is how you can use the existing legacy user store with this new system. Keep in mind that if the legacy user store uses an old security mechanism to store your data, we would recommend that you migrate to the WSO2 JDBC user store format or Active Directory (AD).