Health codes cannot be cancelled, but they can be deleted or re-declared.
1. Delete the health code in WeChat, open WeChat, click the electronic health code in the upper right corner of my card package, and click Delete.
2. Delete the health code in Alipay, open Alipay App, click My Settings Privacy Authorization Management in turn, find the health code, enter the health code details page, and click Cancel Authorization at the bottom.
Longjiang health code is a two-dimensional code generated by Longjiang health code applet according to the epidemic risk level of Heilongjiang population. In the stage of epidemic control, it is the only identification code of Heilongjiang people's health status and can be used as a travel pass.