This behavior is promotion. The goods that can be associated with the window of Tik Tok can be divided into two categories, Taobao shop or Tik Tok shop. As long as your window is bound with the specified products, if you want to add your own products, you need to join the Taobao Alliance and bind them to the Tik Tok window.
Commission ratio: generally speaking, it is more than 30% to make a profit, and it is difficult to make a profit if the commission is too low. Take the goods brought by Tik Tok of Taobao Alliance as an example. Tik Tok's commission ratio is: Tik Tok extraction 10%. Taobao draws 6%. The rest are all your own.