Recently, I was offered a PhD position in Germany starting in September. Accordingly, I applied for a visa and was granted a research stay visa valid from September 1st to February 29th. However, I was unable to book a flight ticket for August 31st, and purchased a ticket for August 28th (arriving on August 29th). I am feeling quite foolish as I hadn't considered this might be an issue until a friend pointed it out.
I am from Brazil. In theory, I could stay in Germany as a tourist for these 3 days before my visa becomes valid. Naturally, I have secured travel insurance and booked an Airbnb starting from August 29th. I am also bringing a substantial amount of money to cover my expenses during these initial weeks.
Do you believe there's a possibility that my entry could be denied under these circumstances? What steps can I take to minimize the chances of that happening?
Thank you all for your help