On which medium should the new Metro-Train-RER tickets or Bus-Tram tickets be placed?

You can store up to 20 Metro-Train-RER tickets and/or up to 20 Bus-Tram tickets on a Navigo Easy pass, a phone or a connected watch.

Good to know:

• To buy a ticket from Paris Region to Airports, use a different Navigo Easy or telephone device than the one where you stored your Metro-Train-RER or Bus-Tram tickets.
  These securities cannot coexist on the same medium.
• It is possible that the Metro-Train-RER ticket is not available for purchase on the app or on a ticket machine. This is explained by the presence of an incompatible ticket on your device (usually a t+ ticket or a Paris Region ticket to Airport). In this case, you must either use all the tickets that cannot coexist and are already present on the support, or use another medium. Click to find out more about thecoexistence of transport tickets.