When a message turns Unread, the Unread Message Icon notifies the user with a small blue coloured circle in it. The user is supposed to click on the Unread Message Icon to check them.

Click  as directed by the arrow from the figure below.

View Unread Messages window is opened as shown below.

The users/team members unread message list is opened.

Note: You can see the unread message count from the above figure.

Click on the selected user from the unread message list as directed by the arrow from the figure below.

You will be landed on the selected user window, here you can see the received unread messages as shown below from the blue rectangular box.

Click  as directed by the arrow from the figure below.

You are taken back to the Troop Messenger's Home Page.