A Taobao store sub-account is a sub-account created under a Taobao store with independent login and operation permissions. Generally speaking, the main account can assign some operation permissions to the sub-account, such as product management, order processing, etc., by setting up the store's "employee management" module. This allows multiple people to jointly manage a Taobao store and improve the store's operating efficiency. At the same time, Taobao's sub-account system also has some rules and restrictions, such as not allowing sub-account transfers and not being able to bind to other main accounts.