You will receive the shipment code by email, text message or both, and on the notification slip. This will depend on the information provided by the sender to the Post Office.
You can also check with the sender for the correct number.
If you are travelling with Renfe and have arranged to send your baggage with the Post Office, you can track its location at any time.
1. Locate your Ticket Number You will find it in the upper section of your train ticket: