Digital Transformation of Postal Logistics Supply Chains toward Sustainability and Efficient Management from a Web 4.0 Perspective

The development of sustainable supply chains in postal logistics has become a critical challenge and strategic priority in the context of accelerated digital transformation. The adoption of Web 4.0 technologies, including artificial intelligence, the Internet of Things, Blockchain, and advanced analytics, enables the transition from traditional logistics models to intelligent, adaptive, and data-driven processes. They simultaneously support management efficiency, environmental responsibility, and social sustainability. These technologies facilitate predictive planning, route optimization, enhanced transparency, and improved resource management. They result in reduced operational costs and greenhouse gas emissions, as well as increased reliability and quality of postal services. The integration of Web 4.0 technologies with sustainable operational practices, such as the use of electric vehicles, smart warehousing systems, and environmentally friendly packaging solutions, generates a synergistic effect that improves overall system efficiency, reduces the environmental footprint, and enhances customer experience. This paper provides a systematic overview of Web 4.0 technologies and sustainability-oriented practices in postal logistics, identifies their key benefits and implementation challenges. The research also demonstrates how their combined application supports long-term resilience, competitive advantage, and the transformation of postal logistics supply chains toward intelligent and sustainable systems.