2-step verification is a security feature that requires an additional verification step to sign into your TikTok for Business account.
When you set up 2-step verification, you will sign into your account using your password and a second verification step. You can choose the following methods:
Text Message (SMS) to the phone number associated with your account
Google Authenticator App from the Google Play Store and Apple App Store
2-step verification is designed to provide an extra layer of security and to prevent unauthorized access to your TikTok for Business account, even if your password is compromised.