My SF Express tracking is not updating or seems stuck. What should I do?

Tracking can pause for several reasons: weekends and holidays, long transport legs between sorting hubs, or international customs processing. For cross-border parcels, updates often stop briefly during the handoff to the local delivery partner and resume once the parcel is scanned in the destination country. If there is no movement for an unusually long time, contact the seller or SF Express customer service with your waybill number.