Does anyone have to go back when sending a message?

For the communication between people, replying to messages is a polite and respectful expression. In most cases, if someone sends you a message, you should try to reply, especially in work or personal contacts. A reply can show that you care about each other's information and are willing to keep communication and interaction with each other.

However, sometimes we may not be able to reply to messages immediately for various reasons, or some messages may not need to be answered. In this case, it is best to explain your situation or why you choose not to reply. Maintaining transparent and polite communication methods helps to maintain good interpersonal relationships.

Generally speaking, replying to messages is a kind of social etiquette, but the specific reply depends on the specific situation and personal judgment.