4px Tracking API

About 4px

4PX Express (“4PX”) was conceived in 2004 and is China’s #1 cross-border e-commerce solutions provider. 4PX employs over 1,500 employees across 50 different global locations. Its major investors include Singapore Post Limited and Shenzhen Capital Group (one of the China government’s largest investment companies).

Tracking Code Patterns:

Examples of the available tracking # patterns:


Auto-Track 4px Shipments

Our Multi-Carrier Tracking API will auto-track your 4px shipments

4px Post-Shipping Automation

Fully integrate 4px tracking into your WooCommerce or Shopify store admin

4px Delivery Notifications

Send your customers automated 4px shipment status & delivery emails or SMS

4px Tracking on Your Store

Direct your customers to track 4px shipments on a tracking page on your store