WordPress at a glance
action is not described

pre_network_site_new_created_user action-hook . WP 4.5.0

Fires immediately before a new user is created via the network site-new.php page.

Usage

add_action( 'pre_network_site_new_created_user', 'action_function_name_8781' );
function action_function_name_8781( $email ){
	// action...
}
$email(string)
Email of the non-existent user.

Where the hook is called

In file: /wp-admin/network/site-new.php
pre_network_site_new_created_user
wp-admin/network/site-new.php 109
do_action( 'pre_network_site_new_created_user', $email );

Where the hook is used (in WP core)

Does not used.