On 30 September 2021, the Austrian and Belgian National Public Health Institutes Gesundheit Österreich GmbH (GÖG) and Sciensano organised a session at the European Health Forum Gastein with the title ‘Datademic, Data-decision-behaviour: A consolidated approach?’. The topic was chosen to highlight the process from data to decision to behaviour and is linked to the EU project PHIRI (Population Health Information Research Infrastructure). The discussion was about the complex relationship between health data/ information, policy and behaviour, and how better data can ultimately lead to better decisions.