How to display tooltips?

Question

WordPress

Can you please tell me how to display such notifications in WordPress?
Why do I need it?
Added custom fields to the profile. It is necessary that if the field is not filled in by the user, a tooltip is displayed with a suggestion to fill it out. I googled but didn't find anything, it just doesn't show up.
You can just link to the wordpress docks, you can have the finished code :)
Here is my code:

function my_user_contactmethods($user_contactmethods){
 
  $user_contactmethods['wmr'] = '<a name="wmr"></a> WMR кошелек';
 
  return $user_contactmethods;
}

Answer 1

It's called admin notices :
https://codex.wordpress.org/Plugin_API/Action_Refe...