Hi, Donna!
They will not need you to have your reservation number in order to check in at your
Walt Disney World resort hotel. When you arrive, you can just give them your name and your photo identification, and they will find you in the computer and get you all hooked up.
Do you know about
My Disney Experience? If you don't already have an account, I definitely recommend that you get one. There's a really cool feature once you have an account there. You can use the
Online Resort Check-In option. You can enter all of your information online before you ever set foot in the resort, and if you get your
MagicBands delivered to you at home, you may not even need to stop by the front desk. If you enter a number where you can receive a call or text, as soon as your resort room is ready, you will get a text giving you your room number, and you can head right there. How's that for easy peasy?
You might want to pop over to the front desk when you have a minute to just see what activities are going on at your resort. They'll have a schedule there for you to pick up.
Have a great Walt Disney World vacation!
Anna