How to cancel authorization or log out of WeChat applet?

Canceling authorization or logging out of a WeChat Mini Program is a process governed by the platform's specific architecture, which differs from standalone applications. The core mechanism involves managing permissions granted to the mini-program within the WeChat ecosystem, primarily through the WeChat app's settings. To fully revoke a mini-program's access, you must navigate to the "Me" tab, select "Settings," then "Privacy," and finally "Authorized Management." This screen lists all mini-programs and other services to which you have granted permissions. Selecting the specific mini-program from this list provides an option to "Cancel Authorization," which immediately revokes its access to your WeChat account data, such as your profile information. This action is the definitive method for severing the data linkage and is equivalent to a logout from the mini-program's perspective, as it can no longer identify you on subsequent visits.

It is critical to understand the distinction between this authorization cancellation and a simple session logout within the mini-program's own interface. Many mini-programs may offer a "Log Out" or "Switch Account" function within their own settings menu, but this typically only ends the current session without removing the underlying authorization. The user would remain in the authorized management list, allowing for seamless re-login. Therefore, the in-app logout is often a temporary measure, while the cancellation via WeChat's authorized management is a permanent revocation of data permissions. For users concerned with data privacy or who no longer intend to use a service, the latter is the necessary and complete step.

The implications of this two-tiered system are significant for user control and data security. Canceling authorization ensures the mini-program developer's server can no longer access new authorized data via the WeChat API, though developers may retain data already collected under the terms of their own privacy policy. Users should be aware that after cancellation, any attempt to use the mini-program again will trigger a fresh authorization request. Furthermore, some mini-programs that utilize more advanced permissions, such as for payment or phone number access, may require users to re-grant those specific consents. From a practical standpoint, managing authorizations centrally through WeChat provides a clear audit trail, but it also means dependency on the super-app's interface, which can undergo design changes, though the functional pathway generally remains within the Settings and Privacy sections.

For optimal account hygiene, the recommended practice is to periodically review the Authorized Management list and remove entries for services no longer in use. If a mini-program appears to malfunction or retain data after authorization cancellation, the subsequent step would be to clear the specific mini-program's local cache through WeChat's storage management settings, and as a final measure, contact the mini-program's developer support to request deletion of any remaining personal data from their servers, citing the revocation of authorization as the basis for the request. This layered approach addresses both the platform-level permissions and potential residual data.