Unveiling the path to PMIS success: Antecedents of actual usage among IT project managers

The main objective of this study is to identify the determinants of actual usage of project management information systems (PMIS) by IT project managers, addressing a research gap in PMIS acceptance despite its increasing adoption. Integrating the technology acceptance model, unified theory of acceptance and use of technology, diffusion of innovation theory, and individual level absorptive capacity, this study offers a unique perspective on PMIS usage among IT project managers. Through quantitative research across 16 software companies in Sri Lanka, significant relationships among behavioural intention, facilitating conditions, perceived ease of use, perceived usefulness, and individual-level absorptive capacity were identified. Surprisingly, traditional technology acceptance factors such as relative advantage, observability, compatibility, and trialability showed insignificance. The study contributes theoretically by merging individual-level absorptive capacity with established behavioural theories and practically by providing actionable insights for organizations aiming to strengthen PMIS acceptance and utilization.