I am building a ticket system and would like to use the comment threads as the discussion for the ticket. There are three users involved in each ticket:

  1. The client.
  2. The support operator.
  3. The support supervisor.

The order of things is:

  1. Client opens ticket
  2. Supervisor assigns it to operator.
  3. Operator works on it.

All three can add to the discussion and I would like to notify the other two with a custom message, when one adds a comment. How can I do this?


I did it the long way, with help from a related WordPress.org support thread:

add_action('comment_post', 'notify_author_of_reply', 10, 2);

function notify_author_of_reply($comment_id, $approved){

  $comment = get_comment($comment_id);
  $post_id = $comment->comment_post_ID;
  $post = get_post($post_id);

  if($approved && (get_post_type( $post_id )=='ticket')) {

    $supervisor = get_userdata( get_post_meta($post->ID, 'assigned_by', true) );
    $operator = get_userdata( get_post_meta($post->ID, 'assigned_to', true) );
    $client = get_userdata( $post->post_author );

    $recipients = array(

    $current_user = wp_get_current_user();

    if (($key = array_search($current_user->user_email, $recipients)) !== false) {
    wp_mail($recipients, 'New comment', 'Dude you got a reply...');

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