Can I change the route area, facilities, seat position on the JR WEST ONLINE TRAIN RESERVATION?
You can make changes or revision before you pick up the ticket and if the reservation is prior to departure time from a PC or a smartphone. If you choose "Pay at station" as the method of payment, you cannot make any changes prior to pickup.
Once, you pick up the ticket, no changes can be made online.
* There are restrictions on changing reservations, such as regular tickets without special deals and some changes may not be allowed.