Yes as previous poster said you will eventually see a Disney number in your account. Just keep logging into your Orbitz account and checking your "My Trips" for that particular purchase of tickets. Right from day one you should say a place for the Disney # but it will be blank, after a few days (for me it took five days I think) you will see the number there. This is something for people who are not buying way ahead to consider that there will be a few days delay before you can book your FP+ if you are already within that time window.