A two day face-to-face conference on data sharing and secondary data analysis in child and youth wellbeing research will be held on 9th and 10th December 2024 in Zagreb, Croatia, along with a one-day statistical course on how to access and compare data from different sources on 11th December 2024. The events are organised as part of the COORDINATE project, which aims to build a community of researchers focused on enhancing child wellbeing.