Jin Jinghua, deputy director of the Beijing Municipal Transportation Commission, secretary of the party group and director of the Beijing Postal Administration, said that due to the dual impact of the epidemic and business peaks recently, there has been a backlog of some express shipments, and the service time limit has been extended. This is due to the fact that some courier boys are sick and have symptoms and cannot work. The front-line receiving and dispatching personnel of express delivery companies are relatively nervous. It coincides with the peak business season of "Double Twelve", and the delivery volume of express delivery continues to increase compared with the beginning of December, and the pressure on express delivery continues to increase. Epidemics also occurred in scattered warehouses and distribution centers in Beijing and outside Beijing, which affected production capacity and reduced the timeliness of express package packaging, sorting, and transfer processing. The superposition of the three factors has led to a certain degree of backlog in delivery, which has affected the citizens' online shopping service experience.