Author meta just showing numbers

Thanks - and do I add into the php code - or do I need to include into the shortcode on my template. Sorry - not sure where to add it!

Hello - I just wanted to elaborate a little further. As it is still not working, and I thought it would be easier to give a fuller picture:

'<div>get_the_title( $university );
$academics_university = rwmb_meta( 'academics_university' ); //maybe do I have to write its a custom field here?
$academics_university = get_the_title( $university )</div>'

To explain the above: $university is my custom post type. $academics_university is a custom relational post field saved to the user. I created one relationship between user and university too. It works on the backend.

But I am trying to get the $university to show next to the author of a different cpt ($research). The author creates these posts and these posts are also connected to the user and to the university cpt. I believe I need to use the author meta option (on elementor pro template) with the meta key 'academics_university' - as the related post is saved to the user.

Right now, the post ID shows. But I cannot get the university to show and link to the selected $university.

I would really appreciate your advice how to do this! I am not a developer in any way (you can probably tell)

Hi Long, yes of course (I deleted the other custom fields in group as was too long for this message to send)

<?php
add_filter( 'rwmb_meta_boxes', 'your_prefix_function_name' );

function your_prefix_function_name( $meta_boxes ) {
    $prefix = '';

$meta_boxes[] = [
    'title'  => __( 'Academic: Profile', 'your-text-domain' ),
    'id'     => 'academic_profile_group',
    'type'   => 'user',
    'fields' => [
        [
            'name'          => __( 'University', 'your-text-domain' ),
            'id'            => $prefix . 'academics_university',
            'type'          => 'post',
            'post_type'     => ['university'],
            'field_type'    => 'select_advanced',
            'required'      => true,
            'admin_columns' => [
                'position'   => 'after',
                'sort'       => true,
                'searchable' => true,
                'filterable' => true,
            ],
            'columns'       => 1,
        ],
return $meta_boxes;
}

Thank you Long for the reply! But I still can't get it working...

I tried:

{
$post_author_id = get_post_field( 'post_author', $post_id );
}
$post_id = rwmb_meta( 'academics_university', ['object_type' => 'user'], $post_author_id );
echo get_the_title( $post_id )
?>

So I guess I don't know what to add in replacement to your "123" to make it work for dynamic post author. Can you advise?

Secondly, I don't really understand when I would use field post user meta versus the relationship. How do they differ - and could you possibly provide an example of how they differ?

It is likely that I will want to use additional fields from the related post to show in future $research templates

Thank you - I appreciate it.