Why doesn't SF appear on Shanghai Railway?

Logistics information will be delayed. The SF-Shanghai Railway will not display the logistics information, because the courier company will delay updating the logistics information, so you can wait for the inquiry. If it is urgent, you can contact the manual customer service with the voucher number, and the customer service will have a detailed record of the express logistics. If the courier information is not updated, you can ask the seller first. If the seller says that the goods have been sent out, it is the problem of the courier company, then you can ask the courier company. As for practical problems, logistics information shows that it has been received or some information has been obtained. In this case, it must be a logistics problem. Express delivery is delayed due to weather or special regional conditions. A few reasons are that individual express mails are accidentally forgotten somewhere. What exactly is the problem? Please consult the customer service of the courier company.