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  What happens when the sign-in is open but the class meeting is finally moved?

If sign-in is open, but a course class meeting needs to be modified (room, time, etc.), you need to create a new class meeting, not modify the existing one.

Once a sign-in has been opened for a class meeting - and the class meeting has therefore taken place - the sign-in remains stored in the safe, along with the information on the course at that time. If the class meeting is moved, the safe retains the initial registration. There is no longer any link between the class meeting in the safe and the HYPERPLANNING class meeting.