Sustainability science research is characterized by its high transdisciplinary ambitions. However, despite claims to urgent social change, important sustainability principles—including social complexity issues such as learning and knowledge sharing among stakeholders—are not fully contextualized and understood within the general framework of sustainability science research. To explore possible synergies between sustainability science research and social analysis, this chapter uses a qualitative method to account for the theoretical and practical implementation of a transdisciplinary research process. Through one example of a change in Swedish natural resource management policy, the paper demonstrates how a top–down and bottom–up conflict in natural resource management was dealt with by the creation of an innovative environmental governance constellation. This was done by the mobilization of the theoretical concept of ‘boundary objects’ to develop and maintain coherence over time between stakeholders and social worlds sharing a common sustainability interest but with conflicting stakes. It is concluded that ‘boundary objects’—here, a new communication platform—can facilitate cooperation between stakeholders regarding the complexities of social–ecological systems governance and policy.