The purpose of this paper is to provide an in-depth analysis of the existing research regarding warehouse operations specifically storage policies. Warehouse operations are critical factors that affect the responsiveness of the supply chain. To meet customer demand on time, optimizing warehouse operations is critical to enhance the overall supply chain performance. Storage policy is critical in warehouse operations, directly impacting order fulfillment efficiency, lead times, and space utilization.  The main objective of this study is to determine the effect of storage policies on the utilization of the warehouse, lead times, and overall operations of the warehouse.  Hence, this paper examines the existing storage policies, and types of simulation modeling that would aid in creating a simulation model that mimics warehouse operations for testing purposes.