Digital transformation has become an essential strategy for improving operational performance and organizational effectiveness in manufacturing industries. This study aims to analyze the implementation of a Power Apps-based digital management system in the Quality Assurance Department of PT Cameron Systems Batam and evaluate its contribution to work efficiency and effectiveness. A qualitative case study approach was employed, with data collected through semi-structured interviews, observations, and documentation involving key stakeholders directly engaged in the system implementation process. The collected data were analyzed using thematic analysis to identify patterns, benefits, and challenges associated with the adoption of the digital management system. The findings indicate that the implementation of Microsoft Power Apps significantly improved document accessibility, workflow automation, information accuracy, and communication efficiency among Quality Assurance personnel. The system reduced dependence on manual processes, accelerated data retrieval and reporting activities, and enhanced monitoring and control functions. However, several challenges were identified, including user adaptation, system integration limitations, and occasional technical issues during implementation. The study highlights the importance of digital management systems in supporting operational excellence and demonstrates how low-code platforms such as Microsoft Power Apps can contribute to organizational efficiency and effectiveness. These findings provide practical insights for organizations seeking to accelerate digital transformation initiatives within quality management functions.