This study expands upon current conceptualizations of fit between a firm’s competitive strategies and infor- mation systems capabilities. Limitations of existing theories have hindered the development of operationalized models for measuring the strategic fit of a firm’s information system. Using configurational theory and the concept of emergent strategies and capabilities, this paper develops a model for measuring the strategic fit of a specific type of information system: supply chain management information systems (SCM IS). Findings from a multiple-case study of five manufacturers indicate the developed model can give an accurate, reliable, and useful analysis of the strategic fit of a firm’s SCM IS. The operationalized model is sufficiently grounded theoretically and empirically to enable further study of the strategic fit of IS and its relationship with firm performance.