Edit: Yes, I know, I provided an answer to this question myself. However, I'm still interested in other solutions and/or comments on the one I found. Is this how you would do this? Are there any other ways?

I would like to provide some additional description and on-page help (i.e., no contextual help or help tabs) on the overview page (i.e., edit.php) for a custom post type.

According to edit.php (as well as class-wp-list-table.php and class-wp-posts-list-table.php) there is no appropriate hook.

So, how can I do this?

A few notes:

  • I came up with a solution, which I would describe a bit hackish, so I'm open for a clean solution (if there is one);
  • I will post my solution as an answer so you can comment on that (and so the question and answer are kept separate);
  • I'm aware that I can do this via JavaScript/jQuery - but that's not clean (IMO) as well...

2 Answers 2


I kind of feel like I'm missing something obvious, but maybe I'm not. What about the admin_notices hook, seems like the obvious choice to me. There are some admin CSS classes available you can use, like updated, error or update-nag, or you can of course add your own styles, like asked and answered here or here.


function my_cpt_info() {
    if ('edit-my_cpt' === get_current_screen()->id) {
        <div class="updated">
                <?php _e('Some information about my CPT...', 'my-text-domain'); ?>
} // function my_cpt_info
add_action('admin_notices', 'my_cpt_info');
  • Well, I honestly didn't think of the admin notices - simply because they are handled outside from where I looked. You are, of course, right, and this is the obvious hook/place. One problem, however, is plugins/settings that restrict (or hide etc.) admin notices for specific user( role)s. Anyway, +1, and thanks for taking care of this question.
    – tfrommen
    Commented Feb 17, 2014 at 19:12
  • 1
    My pleasure. You might be right about the restrictions/interferences by plugins, but I guess you'll have to deal with that if it actually is occurring. The only thing else I've in mind is, there is the hook all_admin_notices, which might not as well known or at least not as widely used. @tf Commented Feb 17, 2014 at 19:58

Currently, I'm doing this:

  • hijack the bulk update message;
  • adjust the count for update;
  • insert my text;
  • hook with 0 priority.

In code, this reads as follows:

function my_cpt_info($messages) {
    if ('edit-my_cpt' === get_current_screen()->id) {
        global $bulk_counts;
        $bulk_counts['updated'] = 1;

        if (! is_array($messages))
            $messages = array();

        $messages['my_cpt']['updated'] = 'Whatever it is that I need to explain about this post type, I just do it right here...<br>';

        return $messages;
} // function my_cpt_info
add_filter('bulk_post_updated_messages', 'my_cpt_info', 0);

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