Why is my Colissimo tracking not updating or stuck?

Tracking can appear stuck for a few reasons. The parcel may be between sorting centers, waiting for an import scan after leaving France, or held in customs. International parcels often go quiet during the handoff to the destination carrier. First confirm the number is correct, then allow a little more time. If there is no movement for several days, contact the sender or retailer, who can open an inquiry with La Poste.