Published By and Last updated By

Hi

We want to show the last modified and last update products by users in backend of woocomerce

We found this code, but it shows the name of user randomly wrong!

Why?

// Add custom columns to product list 
function last_updatedcustom_columns($columns) { 
    $columns['published_by'] = 'Published By'; 
    $columns['last_updated_by'] = 'Last updated By'; 
    return $columns; 
} 
add_filter('manage_product_posts_columns', 'last_updatedcustom_columns'); 
// Populate custom columns with data 
function last_updatedcustom_column_data($column, $post_id) { 
    switch ($column) { 
        case 'published_by': 
            $published_by = get_post_field('post_author', $post_id); 
            $published_by_user = get_userdata($published_by); 
            if ($published_by_user) { 
                $published_by_name = $published_by_user->display_name; 
                $published_date = get_the_date('Y-m-d H:i:s', $post_id); 
                echo $published_by_name . ' <br> (' . $published_date . ')'; 
            } 
            break; 
 
        case 'last_updated_by': 
            $last_updated_by = get_post_meta($post_id, '_edit_last', true); 
            $last_updated_by_user = get_userdata($last_updated_by); 
            if ($last_updated_by_user) { 
                $last_updated_by_name = $last_updated_by_user->display_name; 
                $last_updated_date = get_the_modified_date('Y-m-d H:i:s', $post_id); 
                echo $last_updated_by_name . ' <br> (' . $last_updated_date . ')'; 
            } 
            break; 
    } 
} 
add_action('manage_product_posts_custom_column', 'last_updatedcustom_column_data', 10, 2);

/*Charge Product Columns Content*/
function woo_product_extra_columns_content($column)
{
	global $post;
	$product_id = $post->ID;
	switch ($column)
	{
		case "product_ID":
			echo $product_id;
		break;	
		
	}
}
add_action("manage_posts_custom_column",  "woo_product_extra_columns_content");