Which forum should have all your info?

so you know how when you take an AP test and they say only one forum can have all your information if you’re taking various exams, which forum should it be? Does it HAVE to be the forum from the first AP exam you take or can it be any of the forums as long as one of them has all your information? Because my second AP exam bubble forum has all of my information, not the first AP exam

I have the same question! Does anyone know?