Delete Sent Facebook Message
Step 1: Sign in to your Facebook account.
Action 2: Click the "Messages" switch in the menu on the entrusted to open up the Messages page.
Action 3: Click the conversation which contains the sent messages you intend to remove. Facebook shows conversation threads in day order with one of the most recent below the page.
Tip 4: Click the "Actions" button at the top of the conversation screen.
Tip 5: Select "Delete Messages" from the pull-down menu.
Action 6: Click to enable the check box next to each sent message that you wish to erase.
Step 7: Click the "Delete Selected" switch and afterwards click "Delete Messages" in the confirmation pop-up home window. Facebook removes the selected messages.
Pointer: To remove a whole conversation, consisting of all obtained as well as sent messages, click the "Delete All" option after opening up the "Delete Messages" display.