his study aims to explore the implementation of Internet of Things (IoT) technologies within the e-commerce supply chain using a systematic and comprehensive Systematic Literature Review (SLR) approach. By critically analysing a broad range of recent studies, it systematically identifies implementation patterns, integration barriers, and strategic opportunities that support efficiency and adaptability in digital supply chains. Findings reveal that IoT plays a pivotal role in enhancing logistics operations, inventory management accuracy, and responsiveness to dynamic market demands through real-time data monitoring. Key challenges include data security vulnerabilities, high initial investment costs, and the complexity of system interoperability. Nevertheless, the long-term benefits underscore the strategic potential of IoT as a transformative component in sustainable e-commerce supply chain development. This review contributes both theoretically and practically to policy development, technological investment strategies, and the design of adaptive IoT-based supply chain models.