Here's how to find tour reservation number- it isn't the letter/number combination that they give you as your reservation confirmation number:
Go to the Disney website.
Get to the
MDE page.
Put the cursor on the "Modify Checkin" tab (on the right, the icon is a little "ring for service" bell) and let it hover there.
A little box should appear on the bottom left hand corner that has the internet address.
After "resort-reservation-id", there is a 12 digit number surrounded by back slashes.
THIS IS YOUR 12 DIGIT RESERVATION NUMBER YOU NEED TO USE ON THE BOG PAGE TO GET YOUR FP+!
Try this- hope it helps.