Make Pre-Publish Post Checklist work with Custom Post Types

ppc-cpt.php

/**
  * Make Pre-Publish Post Checklist work with Custom Post Types
  * Add to your functions.php file
  */
function my_add_meta_boxes() {
    add_meta_box(
        'pc-meta-box',
        'Pre-Publish Post Checklist',
        'pc_create_meta_box_callback',
        'YOUR_CPT', /* Change this your Custom Post Type ID */
        'side' );
}
add_action( 'add_meta_boxes', 'my_add_meta_boxes' );