WMS warehouse management system is so powerful, why don't many enterprises?

Generally, large enterprises will use WMS, and some small and medium-sized enterprises will directly use ERP, including warehouse management. However, it is not as detailed as WMS, and ERP management is too extensive, while WMS only makes storage details, such as where goods are stored, how they are stored, and what types of storage they are divided into. WMS is divided into fine points, and the division of labor in business management is clear and orderly.