PurposeThe paper aims at identifying knowledge sharing barriers and enablers in an interorganizational setting at different levels of units. For this purpose, the interorganizational setting of Peshawar Bus Rapid Transit project in Pakistan is examined.Design/methodology/approachThis study adopts an exploratory single case study approach. The empirical data comprise semi-structured interviews and archival documents. Thematic analysis is used for analyzing the data.FindingsThe findings identify distinct knowledge sharing barriers and enablers at different level of units (individual, team, organizational and interorganizational). Based on the findings, an integrative framework of knowledge sharing barriers, enablers, and levels of units is proposed. Furthermore, the findings provide guidance to managers as the findings show how different knowledge sharing barriers and enablers are important at different levels of units.Originality/valueThis study novelty lies in determining separate sets of knowledge sharing barriers and enablers at different level of units in an interorganizational project. This study contributes to the literature on knowledge sharing by studying an interorganizational project.