Hi Mary, and welcome to planDisney!
I can not begin to tell you how many mistakes I have made that need to be changed, and luckily,
Walt Disney World Resort makes it easy to correct them using your
My Disney Experience account.
To change the birthday of one of your guests:
1. Ensure they are included on your
Family & Friends List.
2. Using the mobile app, select the three lines at the bottom right of the screen and select “My Profile” and then the “Family & Friends List” at the top.
3. From there, select the guest in question, choose to “update info,” make the necessary changes to the birthday and save the information.
This process has worked for me in the past, but if, for some reason, you cannot get the change to stick, I recommend calling Website Support at (407) 939-4357 to speak with a cast member who will be able to assist you.
We are here if you need us for anything further.
Have a magical time!
Raquel