Delete the conversation you want to end. … Select the conversation in the Trash tab of your inbox. … Select the conversation’s final option, Delete permanently, at the top of the screen. A caution message will appear to allow you to proceed or cancel.

At the top of the screen, tap Edit (the three lines and a checkmark) for the Chat tab. Select the chat you wish to delete. click Delete > Delete to remove it.

A text message will be sent to everyone in the conversation informing them that the message has been deleted. You’ll have 10 minutes to remove a message after it’s delivered, though you may only do so for yourself. When you select this option, the message will be erased for you but not for anybody else in the chat.