The fourth step to cope with the changing customer expectations and demands is to monitor and measure your service to identify your strengths and weaknesses, and to make improvements. Various metrics and indicators will help you to evaluate your service quality, such as customer satisfaction, retention, loyalty, advocacy, churn, and revenue. You can also use tools and platforms to track and analyze your service performance, such as dashboards, reports, and feedback systems. By monitoring and measuring your service, you can gain insights, learn from your mistakes, and optimize your service.