Abstract
Refugee children and young people have high levels of unmet mental health needs. A trauma‐informed service transformation framework was applied with 14 professionals in Turkey. Through participatory focus groups, professionals co‐produced service plans and considered enabling and challenging factors for implementation. Data were analysed through a thematic codebook approach. Established themes suggested that implementation should concurrently address societal barriers, agency fragmentation, lack of contextual interventions and sustainability. These led to the development of a Theory of Change. A trauma‐informed and scaled service model of collaborative care can holistically meet refugee children and young people's complex needs, while maximising sparse resources.