first find the Shanghai cold chain applet.

to generate the Shanghai cold chain traceability code, first find the Shanghai cold chain applet, and complete the registration on the Shanghai food safety information traceability platform, and obtain the user name and password. To register, you need to fill in the business license registration number and other information, and upload it after filling it out. After waiting for the manual review, you can use the Shanghai Cold Chain applet. Search for "Shanghai Cold Chain" in the WeChat applet and enter the user name and password to log in. It shows the traceability code.