After logging in to WeChat, the following interface will be displayed to remind you that you can't log in. The same is true for the cancellation of WeChat official account.

Friends can know after the cancellation of WeChat. After the cancellation of WeChat, your WeChat is still in the friends list, and the name is still the note that the other party gave you before. The avatar will be the last avatar before you log off, but you will not be able to send messages to check your circle of friends after clicking the recording. If the other person has talked to you before and has not deleted the dialog box.

You can also send it, which will show that the other party can't receive the message. When a friend checks your personal information or sends a message, he will prompt to record that the account has been cancelled.