Hello, Jessica!
Welcome to planDisney! We are DELIGHTED you stopped by, and we are very excited to answer your question regarding your
Disneyland Theme Park Tickets!
In order to upgrade your Disneyland Theme Park Tickets to a different tier, you must do this in person at a Disneyland Ticket Booth once you arrive at the Disneyland Resort. Unfortunately, you are not able to make this change over the phone or in your My Disneyland Account.
Now, I am very happy to inform you that you do not have to change the name on an existing ticket in order for another person to use that specific Disneyland Theme Park Ticket. Once you arrive at one of the Disneyland Theme Parks, a Cast Member will take a picture of the person using your ticket. From there, the ticket will be linked to the person on the picture. If you have a multi-day Disneyland Theme Park Ticket, this ticket must be used by the same person for the each valid day on the multi-day ticket.
If you have other questions, please do not hesitate to ask! We are here to help in any way!
Have a MAGICAL day!
Wes