add_filter('manage_posts_columns', 'add_acf_columns');
function add_acf_columns($columns) {
    $columns['custom_field'] = __('Custom Field');
    return $columns;
}

add_action('manage_posts_custom_column', 'show_acf_columns', 10, 2);
function show_acf_columns($column, $post_id) {
    if ($column == 'custom_field') {
        echo get_field('custom_field_name', $post_id); // Replace with your field name
    }
}