Originally Posted by
bartek
Is there any difference if you stay in the lounge till 1 minute before boarding starts or if you go to the gate early enough.
I was wondering what happens if they ask you by name to come to the podium to give you an op-up and you are not there yet

If you're on the upgrade list then the scanner at gate will just beep and print out a new seat assignment (or you'll be handed out one from the gate agent).
Sometimes (specially at LH operated lounges at foreign station I think) your name will be called in the lounge.
I've been handed op-up BP's at the gate both after calling and after bipping, don't think there's any difference.