Does sending SMS mean that it has been received?

It means that the other party received the text message, but you are not sure whether you saw it or not. If you don't want to see the prompt, you can set it off in your mobile phone.

1. Open the phone and click the SMS icon on the phone screen, as shown in the figure below.

2. After entering the SMS interface, click the three points in the lower right corner of the interface, as shown in the figure below.

3. Click Settings in the pop-up menu, as shown in the figure below.

4. When sending the report, the back switch is turned off. When the message is closed, no prompt will be sent, as shown in the following figure.