This application mainly creates a lightweight enterprise management system for small and medium-sized enterprises. The main functions include human resources management system, sales system, financial report and activity creation system. The main functions of the human resources management system include entry application, clock-in function, scheduling function, vacation application, salary calculation, etc. The sales system only manages product sales in offline stores. The system is equipped with desktop version functions and can also set warehouse inventory. In addition, using the activity building system, you can quickly generate activities, and the activities will be sold within another product. When offline sales and online sales are completed, the data will be synchronized to the financial statements to generate the merchant's accounts receivable and payable. At the same time, merchants can also download reports and understand real-time sales details in the system.