In view of the urgent need for many overseas people to apply for "coding on demand" service recently, the Big Data Center responded positively and studied the scheme. With the efforts of many parties, from now on, "follow-up" will support foreigners to register for the "code-receiving" function. Hong Kong, Macao and Taiwan and foreigners can successfully obtain the "on-demand application code" through Alipay applet and "on-demand application" app as long as they carry out real-name authentication in Alipay. Hong Kong and Macao people can also directly obtain the "application code" by registering the real-name users of the "application" app. According to the prevention and control regulations, people who have not filled in the personal health information registration need to complete the personal health information registration according to the prompts and obtain the "application code". The City Big Data Center will also continuously improve its service experience and expand its service channels to provide convenience for overseas people who live, work and travel in Shanghai.