WordPress at Your Fingertips
action is not described

profile_update action-hook . WP 2.0.0

Fires immediately after an existing user is updated.

Usage

add_action( 'profile_update', 'action_function_name_4458', 10, 3 );
function action_function_name_4458( $user_id, $old_user_data, $userdata ){
	// action...
}
$user_id(int)
User ID.
$old_user_data(WP_User)
Object containing user's data prior to update.
$userdata(array)
The raw array of data passed to wp_insert_user().

Changelog

Since 2.0.0 Introduced.
Since 5.8.0 The $userdata parameter was added.

Where the hook is called

wp_insert_user()
profile_update
wp-includes/user.php 2118
do_action( 'profile_update', $user_id, $old_user_data, $userdata );

Where in WP core the hook is used WordPress

wp-admin/includes/admin-filters.php 108
add_action( 'profile_update', 'default_password_nag_edit_user', 10, 2 );