kshojib

<?php 
use Boxtal\BoxtalConnectWoocommerce\Util\Order_Util;
use Boxtal\BoxtalConnectWoocommerce\Order\Controller;

// send email to custom with tracking number on order shipped 
add_action('boxtal_connect_order_shipped', 'send_tracking_number', 10, 2);
function send_tracking_number($order_id) {
	$order = wc_get_order($order_id);

	$email = $order->get_billing_email();