How To Delete Facebook Messages You Sent
Step 1: Sign in to your Facebook account.
Action 2: Click the "Messages" button in the menu on the left to open the Messages page.
Step 3: Click the conversation that contains the sent messages you want to remove. Facebook presents conversation threads in day order with the most current below the web page.
Tip 4: Click the "Actions" switch on top of the conversation screen.
Step 5: Select "Delete Messages" from the pull-down menu.
Action 6: Click to allow the check box close to each sent message that you wish to remove.
Action 7: Click the "Delete Selected" button and afterwards click "Delete Messages" in the verification pop-up window. Facebook eliminates the selected messages.
Tip: To erase a whole conversation, consisting of all received and also sent messages, click the "Delete All" option after opening up the "Delete Messages" screen.