The conference days provided a platform for the exchange of ideas and solutions to promote sustainability and innovation in urban environments. The first "Science Day" was dedicated to the topic of "Green Energy" and "Sustainable City Agriculture" with leading representatives of Viennese and Sarajevo universities, universities of applied sciences, research institutions and start-ups. On the "Vienna Day", the focus was on the exchange of best practices at the administrative level with the panels "Transparent Administration" and "Climate Neutrality via Public Transport". The conference participants were able to exchange ideas on these two topics in smaller groups during the following breakout sessions.