If you are using The Knot's online RSVP option MAKE SURE YOUR GUEST LIST IS UPLOADED! I just turned it on but didn't test it or read into it. I went to test it today because I haven't gotten any online RSVPs and sure enough, I got the error that my name wasn't on the guest list. I quickly reformatted and uploaded my guest list. I sure hope that no one tried to use the online RSVP int he mean time!