Process improvement for inventory management in a Fast Moving Consumer Goods company

Fast Moving Consumer Goods(FMCG) usually refers to those commodities that are used for a short period of time, have low value, are easy to consume, have a wide distribution of consumers, have a high frequency of purchase, and have a long purchase duration. Company A is a distributor of FMCG and has a large warehouse in BCN, has more than 20,000 types inventory in there, for example, smoking accessories, stationery, toys, hardware, light bulbs, toiletries, candles, kitchen utensils, tableware, etc. The customer of company A are those Bazar(Shop that sell FMCG) in Barcelona. At present, there are some problems in the A company's inventory management, moreover physical inventory and inventory data do not match. On the other hand, there are some items with inventory overstock and others with stock shortage. Therefore, how to improve inventory control has become a problem that Company A has to solve. The aim of the project is to improve inventory management of company A. Because this company has more than 20,000 types inventory, so I chose a goods with the most obvious inventory problems the plastic products