On 12 March the “mFUND exchange of expertise: passenger data and information” took place in the DB mindbox in Berlin. Under the title “SmartMMI – Passenger Information PLUS in Public Transport”, University of Applied Sciences Karlsruhe presented the project plan and the current progress of SmartMMI to the participants of the mFUND accompanying research. Together, the participants of the expert exchange discussed challenges and best practice examples for data acquisition and data protection in public transport. The exchange networks mFUND projects of similar topics and different project statuses, thus the individual research projects benefit from mutual experiences.