It is usually said that professional knowledge consists of a knowledge base consisting of different resources. It can be knowledge acquired through education, following the rules, and laws that the practice consists of, through best practices and results from research, but also using user-related and situational knowledge. Social government (Socialstyrelsen) says that professional knowledge consists of a combination of evidence-based knowledge and local conditions and the wishes and beliefs of the user. My intention is to understand the practices that are shaped, how it affects the professional knowledge base and possibly also the organization of welfare work in relation to the user/user's wishes, experiences and needs. It is a case study where a municipal labor market policy measure for young people and young adults between 16-29 years who neither study nor work is at the center. The organization is located in a smaller city. About 10 professionals (social workers and pedagogies) work there and approximately 200 young people are involved every year. The young people involved in the organization are a heterogeneous group and they have contact with the activities in different ways. The organization has a one-way-in idea and has a "life-first" approach point of departure (unlike work-first approach) (Jacobsson, Hollertz & Garsten, 2017). The activities consist of both individual and group discussions, collaboration with other actors, partly, outreach work.The data material gadering for the study (which is ongoing) is both interviews and ethnographic methods to participate in everyday practice, both backstage (work-meetings) and frontstage (with the youth) work. Preliminary results are that the way of organizing work, the practices it creates affects how the professionals develop and use their knowledge. Through the organization as "one way in" and that several external actors are invited to weekly meetings, there is an increased understanding of each other's skills and organizations. It creates an internship where young people can navigate in the expectations and demands that actors, they come into contact with have young unemployed. But the various actors also get other information and opportunities for decision-making. The staff develops the purpose of the activity (to be a one way in, collaborate around young people, get young ones to come to and remain in activities) by developing forms of collaboration and relational work that can be said to create Educational Trust (Görlich and Katznelsons, 2015) in the relationship with young people. Questions that remain, are to more closely study what type of practices (Gherardi, 2012) are shaped when professionals (and the organization) use young people's experience and what knowledge professional develop