thanks for your reply!!
I finally able to do this hook.. but have one problem: hook works fine in client area, but don't starting in admin area (when I creatin client account in admin area).
Can't understend why so:|
In documentation it is written:
This is run when before adding a client or updating a client through the Admin or Client area
Couldn't find any solution in google or on this forum
Here is some logs
Client area registration:
Admin area: