Retract all messages in a chat

When you end a chat with a contact, you can retract all of the messages that you sent in the chat. When you retract a chat, all the messages that you sent in that chat no longer appear on your devices or your contact's device.
Do one of the following:
  • In a chat, click The options icon, then click Retract Chat.
  • Right-click on a chat from the chat list and select Retract Chat.