In the case of inquiries (purchase), a complete work instruction often shows how the supplier should perform the work. However, it is better not to do so, as these issues cannot be examined. And when you do that, you may wonder if outsourcing makes sense given the costs associated with that control. It was better to leave the optimization to the supplier. Ultimately, this translates into a win-win situation. You will then receive a better service at the market price. Typically, an SLA classifies defects by severity and adds a set of service credits to each of these levels to which the customer is entitled. It is also important to determine whether the customer will receive this amount directly or whether it will be deducted from the next month`s invoice. A realistic SLA creates clarity and protects both the customer and the service provider…