How to display the customer service consultation function when closing the private message of Tik Tok account?

Click the function setting button in the upper right corner to enter Tik Tok My interface, and then select the function setting button in the upper right corner.

Click the setting function, and select the click setting function.

Click the notification setting function and select the notification setting function.

Click to close the private message function, and select to click to close the private message function. Can be set successfully.