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Teamwork is of major importance for organizational success. Team learning is a key concept to explain the advantage of teamwork for organizational performance. Team learning is especially important for organizational complex decision-making teams. However, team learning is not well understood. The questions arise, how team learning activities and products are related, and which antecedents may lead to team learning. Thus, relations between activities, products, and antecedents of team learning in organizational complex decision-making teams are focused. A cross-sectional survey study with N =75 organizational complex decision-making teams was conducted to answer for research questions. Research Question 1 asks what beliefs about the team´s interpersonal context are related to which team learning activity. Research Question 2 addresses the mediating role of team reflection in the relation between transformational leadership and team innovativeness. The team learning product of TMM-TM, which refers to team mental models about team members´ vocational competencies, is focused in Research Questions 3 and 4. The study results deepen our understanding of organizational team learning.

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