Update a Custom WordPress WooCommerce Class

I need to display a custom user meta field on the "Add New Order" page of woocommerce when an admin is searching for a customer it needs to display their "DealerID" Here is the current code. class dealer_id_search_customers{ static function init(){ add_filter('woocommerce_json_search_found_customers', array(__class__, 'search'), 10, 1); } // search for user on Order Details page static function search($found_customers){ // code copied and adapted from woocommerce/includes/[login to view URL] json_search_customers() $term = wc_clean(stripslashes($_GET['term'])); $exclude = array(); if(!empty($_GET['exclude'])){ $exclude = array_map('intval', explode(',', $_GET['exclude'])); } $query = array(); $query['role'] = 'wholesale'; $query['meta_key'] = 'dealer_id'; $query['meta_value'] = $_GET['term']; $query['meta_compare'] = 'LIKE'; $customers_query = new WP_User_Query($query); $customers = $customers_query->get_results(); if(!empty($customers)){ // if query has results foreach($customers as $customer){ // split results into individuals if(!in_array($customer->ID, $exclude)){ $found_customers[$customer->ID] = $customer->display_name . ' (DealerID: ' . $customer->dealer_id . ' – ' . sanitize_email($customer->user_email) . ')'; } } } return $found_customers; } }