If you want to know that where the deleted Facebook conversations go, just read the below-given steps: In the first step, click on messages and then on ‘see all’ option which you will see on the drop-down menu > Again go back to the messages screen, you’ll see at the top of the left corner > Here, just below the Facebook, you will get the ‘Inbox’ option & similarly at the right side of it ‘other’ option will see in the grey color > As you will make a click on the ‘other’ option then all your Facebook lost chats will be displayed on the screen.