The functions are as follows
1. Because AppleID is registered by email, in order to verify this ID, when the registration is completed, the system will send an email to the email address we used to register the ID, and then open the email address we used to register AppleID. For example, if I registered with QQ email, I can open the webpage login interface of QQ email and enter my email account and password to log in.
2. If you register with another email, similarly open the corresponding email login page, log in, find a verification email from Apple in the inbox of the email, click Open, click the "Verify Now" link in the email content, and then automatically jump to Apple's Apple ID verification page, If you are prompted to enter the verified AppleID and password, please enter the previously registered AppleID email address and the password at the time of registration. Click the "Verification Address" button and click the verification link. After that, you will automatically jump to the verification page of AppleID. After a while, the verification will be successful.