Experience effect: 1. Integrate with ERP and other procurement management systems to achieve electronic signing of procurement contract throughout the process 2. Purchasers can draft and initiate the procurement contract approval process online according to the purchase plan 3. Both internal and external signatures are completed online, supporting mobile signatures for fast and efficient processing 4. The purchaser synchronizes the purchase order data from ERP, quickly initiates it, and the enterprise automatically seals it 5. After receiving the invitation to sign the SMS, the supplier enters the system through the link to complete the signing