How To Delete Sent Message In Facebook
Action 1: Check in to your Facebook account.
Action 2: Click the "Messages" switch in the menu on the left to open up the Messages page.
Step 3: Click the conversation which contains the sent messages you wish to delete. Facebook displays conversation threads in day order with the most recent at the bottom of the page.
Step 4: Click the "Actions" switch on top of the conversation screen.
Tip 5: Select "Delete Messages" from the pull-down menu.
Step 6: Click to allow the check box beside each sent message that you wish to delete.
Step 7: Click the "Delete Selected" switch and afterwards click "Delete Messages" in the confirmation pop-up home window. Facebook eliminates the chosen messages.
Tip: To remove an entire conversation, including all received and sent messages, click the "Delete All" alternative after opening the "Delete Messages" screen.