The research presents a network DEA (Data Envelopment Analysis) model that incorporates internal and external service operations, with customer satisfaction as an intermediate element. By constructing four efficiency scores using the suggested model: service productivity from internal service processes, service efficiency from external service processes, overall efficiency from both internal and external service processes, and management efficiency without the intermediate output, the authors discovered that the overall efficiency score is the best fit for representing a hotel’s overall productivity. Their findings confirm the validity of a network DEA model for measuring hotel efficiency that includes customer satisfaction. Despite the critical role that client satisfaction plays in hotel efficiency, it has received little attention in past hotel efficiency studies. This study adds to the body of knowledge on hotel efficiency by looking at customer happiness and provides a solid foundation for future research.