ERP is an enterprise management software that integrates material resource management (logistics), human resource management (people flow), financial resource management (financial flow) and information resource management (information flow). People flow, financial flow and information flow all affect logistics, which is an important means to realize enterprise profit. People flow and wealth flow control and restrict information flow, and wealth flow is controlled by logistics. It can be said that the financial flow restricts the flow of people and information, and the flow of people restricts the flow of information, and the flow of people, money and information both restrict logistics, and logistics restricts the flow of money. Non-professional, please forgive me if there is any mistake.