I use version 2.18
I want to set that the user must be activated when registering, otherwise the registration is unsuccessful and the user cannot log in. How should I set it?

NEW in version 2.9: users can activate their new account at a later moment, not only during registration session.

new version，By default, it can be verified later
How to activate account during registration session？

when use SFSErrorCodes.setErrorMessage,Some information does not contain,like
Username: *** is already in use
Email address: ** is already in use

How to solve it？