Hello there, Paulina! Thanks for bringing your question to planDisney!
Worry not! Disneyland Resort theme park tickets aren't officially assigned to an individual until they are scanned at the park gates and a Cast Member takes their photo. From that point on, the same person needs to use the same ticket, but the name attached to it in the
Disneyland app or online doesn't really matter.
Speaking of the app, if you haven't already, be sure to download and familiarize yourself with the Disneyland app before your trip. It will be your best tool for navigating the parks efficiently. You will use it to mobile order food from quick service locations, view your Disney PhotoPass photos, and it will be the only way to use the new
Disney Genie and Disney Genie+ features.
I hope this helps. Have a fantastic time at the Happiest Place on Earth!
-Linda