What is the fine-grained topic of the following text: Miloš Nedeljković from Sberbank in Serbia, Dario Janković from First Data Serbia and Montenegro, Igor Strejček from Erste Bank in Croatia, Goran Bosankić from ABC Tech and Marko Koić, one of our hosts at Infobip, also their solutions marketing manager. Only return the topic.
Presentation or Discussion involving Banking and Tech Industry Professionals