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I got my tourist Italian Schengen visa (multiple entry) but in the last minute I am changing my first port of destination to Germany as we decided to go for a one day music festival in Düsseldorf.
Mostly I will be staying 5 to 6days in Germany and go to Italy afterwards. I will be staying in Italy for 13 to 14days.
Is it OK to do this and travel to Germany first instead of Italy with my tourist Italian Schengen visa?