Why hasn't health code seven come out yet?

Health codes are not possible for the following reasons:

1. Because this area is seriously damaged, no health regulations have been promulgated.

2. During the closed management period, the temporary health code is not displayed.

3. The specific delivery time needs to be notified by the local epidemic command.

4. Check your own network. If the network is poor, it cannot be displayed.

5. Check your information, because your information is wrong.