Three ways for your customers to track their orders:
First one is our tracking API enables you to display the tracking information on your website to your customer;
second one is let them track the package themself through provided tracking No. and carrier official website;
third one is that you send our tracking link http://www.pfcexpress.com/Manage/WebManage/Inquire.aspx?txtID=No
or add a professional tracking link www.17track.net on your webstore FAQ so that your customers are able to track their package.