Health codes in all places will be updated in real time. As long as you log in normally, it is today's date, and no other operation is needed.
If the special circumstances are not updated, you can manually update the health code. Return to the main interface of WeChat, click City Service and click Health Code. Enter the applet, prompt that the health code has expired, and then click Update Now. Fill in the health information, check that I have read it, and then click Submit. If the submission is successful, a new page will pop up. Click Generate Health Code Now.