Activating pass too early?

Hi guys,

I see from previous posts that experts don’t recommend activating the pass until first day of travel. Me and my wife already activated and put the day of validity starting as our first day of travel.

I can’t find in the app how to de-activate. Does it really matter if I’ve put the date of validity as our first travel day anyway? I still have until midnight the day before to change right?

Please let me know how to de-activate in case I need to.

Thanks!