Nowadays, change is the only constant variable. Therefore, business enterprises should focus more attention on them supply chains. The main contribution of this paper is to show the relation between Lean Warehousing and Supply Chain Management since one is inside the other and they complement each other very well to produce results in the retail sector. In the course of the research, the raised hypothesis was proved since the presented results show a better behavior in a 38.36%, compared to the initial scenario. The results of this research show that retail sector companies must perform appropriate management of their inventories, establish a forecasted demand, and have appropriate warehouse spaces. It was possible to decrease their operations time in a 29.59% and have better management of their resources in a 27.50%. The main objective of this paper is to prove that due to the implement...