This paper gives an overview of the theory and practice of planning and scheduling in supply chains. For this purpose it seeks to solve the problem of loading the machines in the electronic production plant at Al-Zawra General Company, in the case of having more than one order at the same time, one of them within the overall plan (MPS), which in turn was the result of "the overall planning using its various strategies and other sudden orders and emergency outside the total plan, which is forced to work overtime and regular and how to deal whit hit within the rules of scheduling production processes in the foggy environment. The goal of the research is to find a mechanism for working in the plant in case the three levels of total planning pr...