The paper aims at identifying knowledge sharing barriers and enablers in a temporary interorganizational setting at different levels of units. For this purpose, the in-depth interorganizational setting of Peshawar Bus Rapid Transit project in Pakistan is examined. This study adopts an exploratory single case study approach. The empirical data comprises semi-structured interviews and archival documents. Thematic analysis is used for analyzing the data. The findings identify distinct knowledge sharing barriers and enablers at different level of units such as individual, team, organizational and interorganizational levels. Based on the findings, the authors propose an integrative framework of knowledge sharing barriers, enablers, and levels of units. Furthermore, the findings provide guidance to managers as they show how different knowledge sharing barriers and enablers are important at different levels of units. This study contributes to the literature on knowledge-based theory by determining separate sets of knowledge sharing barriers and enablers at different level of units in an interorganizational project.