The purpose of inventory management is to achieve as little inventory as possible with sufficient customer needs. By reducing the inventory, we reduce the costs of keeping goods in warehouses, and the delivery time from order to delivery to the customer is also reduced. Optimal management of stocks and processes increases the efficiency and effectiveness of the overall business. Companies should definitely pay attention to the costs that the inventory produces and also choose the correct inventory management policy in order to achieve greater savings and enable better coordination with sales, that is, their needs towards customers. On the other side of logistics, there is sales, which is the only positive flow of the company, which with better optimization of stocks, delivery at the right time can create added value of the product for the customer, increase customer satisfaction and thereby increase sales, i.e. increase market share. The final paper describes the optimization of inventory management on the example of the company Jamnica plus d.o.o. Zagreb. Choosing the right inventory management policy allows for higher sales and just-in-time delivery of entire orders. In addition to the stock policy, it is necessary to define a policy for determining the need to keep stocks aligned with increased sales during the summer period. Sales needs for the summer are reflected in the transition period and require better matching of the assortment and quantity of items with increased customer demand. In order for a company to survive on the market in challenging times, it is important to take care of all business processes and activities, and especially of employees, since they are the key to the success of any company. The joint action of the purchasing department, the logistics department that manages the inventory and sales is extremely important for the company since the entire chain has one goal, which is to deliver the entire order to the customer at the right time.