What is the meaning of invisible SMS on WeChat official account?

The invisible message of WeChat official account refers to the message sent by others when he is invisible. According to the query related information display: that is to say, on a chat software, when it is invisible, others send a message, which can be seen after uploading, but it is invisible when it is not uploaded. Only when you go up can you see this message. Send invisible SMS to open settings, general, auxiliary functions, 3DTouch, open 3DTouch function and adjust sensitivity.