Please ask Alibaba.com to summarize the business process of B2B e-commerce.

The transaction process of B2B e-commerce: Step 1, when a commercial customer places an order with a seller, he must first issue a "user order", which should include a series of product-related issues such as product name and quantity. Step 2: After receiving the "User Order", the seller inquires about the products from the supplier according to the requirements of the "User Order" and issues an "Order Inquiry Sheet". Step 3: After the supplier receives and reviews the "Order Inquiry", it returns the answer to the "Order Inquiry" to the seller. Basically, it's a matter of availability. Step 4, the seller sends a "transportation inquiry" about the transportation of goods to the transporter under the condition of confirming that the supplier can meet the "user order" requirements of commercial customers. Step 5, after receiving the "transportation query", the carrier returns the answer to the transportation query to the seller. Such as: the ability to complete transportation, and the requirements for date, route and mode of transportation. Step six, after confirming that there is no problem in transportation, the seller immediately gives a satisfactory answer to the "user order" of the commercial customer, and at the same time sends a "delivery notice" to the supplier to inform the transporter of transportation. Step 7: The carrier starts to deliver the goods after receiving the "Transport Notice". Then, the commercial customer sends a "payment notice" to the payment gateway. Payment gateway and bank settlement bills, etc. Step 8, the payment gateway sends a "transfer notice" to the seller, indicating that the transaction is successful.