Breakthrough Collaborative (BC) aims at learning through networking, mainly at micro level, and is used as a tool to improve care and welfare organizations. The aim of this study was to explore and illuminate the challenges when applying BC model at meso and macro level. In 2010, the Swedish Health and Medical Services Act stated the responsibility of healthcare professionals to consider children’s needs as relatives. This study uses an interactive collaborative research model. To support healthcare organizations in the implementation of the regulation, county councils/regions in Sweden were invited to take part in a BC during 2015. Six teams from different county councils/regions participated. Team members were interviewed several times during the project time. Data were analyzed with an explorative and descriptive qualitative content analysis. The result illuminates the challenges faced when applying BC at meso and macro level. Most challenges concern preparation, support structures and system connections. There are similarities with the challenges met at micro level when BC is used at meso and macro level. But it seems even more important to consider how the team is constituted at meso and macro level to make use of the learnings and achieve long-term impact in the home organization.