BuddyPress.org

Hello,
why does wordpress and buddypress got that complicated registration process. username, name, email…!?
Totally out of time.
OK, I created a real cool registration form with USER META Pro plugin.
It only asks for a WP nickname, email and password.
With that plugin I set the nickname, the user_login and the buddypress name.
All works fine. users are registred and can login in…and all is working, accept that activation link that is fired during the classic buddypress registration and the insert in that buddypress member table.

How does that work, is there a HOOK, I can fire after my registration is done?

Like, take the user_ID, email address and name and send the activation link.

does anyone has a solution or a suggestion for this?

Thanks,
Denis