Yuekang code signing failed to verify, and there were many system visitors. The verification of Yuekang code signature failed because there were too many visitors or the system crashed due to system upgrade and maintenance, and the Yuekang code could not be viewed, and then the prompt failed.

At present, the national integrated platforms "Epidemic Prevention Health Information Code" and "Yuekang Code" have established mechanisms and rules for information exchange and mutual recognition, making it clear that the information of cross-regional floating population health pass code is reliable and available.

Yuekang code and national comprehensive platform epidemic prevention health information code can be used in Guangdong Province.

"Yuekang Code" relies on the national integrated government service platform, and the national "epidemic prevention and health information code" and the epidemic prevention and health information related to the health codes of provinces (autonomous regions and municipalities) realize data mutual trust.