The service level management is essential for the service provider. Official site: Coupang. The service level management is essential for the service provider. This can be illustrated with the analogy of the product manufacturing. The products of the service provider are the services that he provides his service employees. The service level management is the quality control of manufactured products. The service’s satisfaction is the most important reason for the implementation of service level management. In practice, a service level management will be introduced at the latest if there are problems and disputes with essential service workers that significantly affect sales. The service employees, the service level management is forcing clear to specify their requirements and expectations. If service providers and service workers agree on a mutually acceptable service, they generate a benchmark against which the performance of the IT can be measured. User expectations rise. A gradual increase in the expectations is braked by a documentation of the expectations and the service provider given a reference to the hand, which he always can refer to, when it comes to dissatisfaction with the service employees. Through service level agreements, it’s harder to link to Excel (resource management), and thus the interests of the majority disproportionately many resources itself for politically strong minorities in a company. Therefore can service levels and above all, the level of their performance or injury are considered indicators for system and capacity requirements of the users. Prior to the introduction of service-level management contact, existed between IT departments and service workers only when problems arise what compelled the service employees to see the IT Department as a necessary evil and cause of system failures. It held service conversations as proof of value make the service employees aware, if good work is being done. In this way, the service level management is an excellent marketing tool. The service level management helps also with regard to cost control. On the one hand supports the service provider to provide the agreed service levels without having to to inaccurate estimates. These estimates which easily lead to excessive use of resources (personnel, computers, bandwidth, etc.). Through the use of service-level management, the service provider has a tool to protect themselves from user complaints.