Can my customers check order status by themselves?

Only logistics tracking number will be upgrated to your store. Your customer can track their orders by the tracking number at following platform:

https://www.17track.net/en

 

Here are ways to contact transportation company:

Transportation company Link TEL.
For Perfect X-border http://express.4px.com/ +86755-23508077(0830-1730)
YunExpress https://www.yunexpress.cn/ +86755-89356329 EXT 6005
DHL Express https://www.dhl.com/global-en/home.html +267 391 2000 /+26771398433
YDH Express https://www.ydhex.com +8621-61921511