According to the query of JD.COM, official website, the customer service of merchants can check the assessment data of consultation reception in the backstage of JD.COM merchants, which can help merchants to understand the performance of customer service and the needs of customers, so as to optimize customer service. JD.COM, a comprehensive online retailer in China, is a popular and influential e-commerce website in China. Sales of household appliances, digital communications, computers, home department stores, clothing, maternal and child, books, food, online travel and other 12 categories of tens of thousands of high-quality goods.