This paper discusses the operation management mission of Digi Telecommunication, including their mission to provide mobile connectivity and become Malaysia's preferred digital partner. The company's areas of operation are also explored, including quality management, supply chain management, inventory management, process and capacity design, and scheduling. Suggestions for improvement are provided, such as implementing the six sigma approach for quality management and the just-in-time approach for inventory management. No specific subject, course code, course name, or college/university is mentioned.