A sub-account role can be authorized to multiple parent account roles, and a parent account role can be authorized to multiple sub-account roles. A Tik Tok certified enterprise number can have both sub-account and parent account roles. The rights and interests of one party expire after the successful opening of the sub-parent number, and the authorization will not be automatically cancelled. After successfully completing the annual renewal, the certified enterprise number can still be used normally without re-authorization. If you need to untie, you need to contact corporate customer service.