When you see the notification that “You have a message,” it means that someone has sent you a message on Facebook Messenger. The notification will show the name of the sender, the time the message was sent, and the message itself. To open the message, tap on the notification. If you have more than one message, swipe left or right to view all of your messages.
Video – Why Does Facebook Messenger Say I Have A Message
When you see the notification for a new message, but when you open up Facebook Messenger, there’s no new message, what’s going on?