I got a Schengen visa from a Swiss consulate few days back (Tourist visa). I was planning to visit multiple Schengen countries and Switzerland was my longest stay during the trip. However, I had to change my itinerary for some reason, and now switzerland is neither my port of entry nor the longest stay. Will that be a problem at the port of entry for Schengen region (my port of entry is France)? Or do I need to take another Schengen visa from another country where I will stay the longest now (ex: Italy)? (I will be still visiting switzerland on my trip).