The reason why Tik Tok live broadcast room can't prepay public screen clearing code is that the platform doesn't allow it. According to the inquiry about public information, Tik Tok live broadcast room is not allowed to pay in advance through public screen coding because of security considerations. Because if the prepaid code is displayed on the public screen, criminals may use information to cheat, Tik Tok Live Studio takes measures that do not allow the prepaid code to be displayed on the public screen to ensure safety.