You have accidentally clicked on the small x button next to an important message in your Facebook inbox and now want it back? Don’t worry, as it is most likely that your message has simply been archived. This simple procedure explains how to view and restore archived messages on Facebook:
Sign-in to your Facebook account and go to Messages:
Click on More and select Archived:
All archived messages are listed in this section. Select the message you want to restore and click on Unarchive:
