8s guarantee refers to a service guarantee based on eight seconds, which allows the service provider to make a commitment to respond and solve problems within eight seconds when customers provide services. Within these eight seconds, service personnel need to demonstrate efficient and professional solutions so that customers can trust and be satisfied with the service provider. 8s guarantee is becoming more and more common in the current market competition. It has become one of the service concepts of many enterprises and institutions and has brought considerable performance improvement.

8s guarantee establishes a relationship of mutual trust between the service provider and the customer, allowing the service provider to clearly demonstrate the quality and capabilities of its service to the customer, bringing the following benefits. First, significantly reduce customer dissatisfaction rates, meet customer needs, and increase customers' trust and recognition of service providers. Secondly, improve the work efficiency and professionalism of service providers and create a comprehensive high-quality service experience. Third, gain more customers in market competition and enhance brand value and business benefits.

8s guarantee is widely used in all walks of life. For example, in express delivery, catering, medical care, banking and other Internet and traditional industries, people can see the application of this service concept. Taking the express delivery industry as an example, the application of 8s guarantee in the express delivery process allows the courier to complete the check-in within eight seconds to confirm that the customer has received the express delivery, thus reducing the error rate and time cost, and improving the corporate image and service quality. Therefore, the application of 8s guarantee is not only widely promoted in the service industry, but also represents a new era service concept of service-oriented and user satisfaction.