sometimes you need to delete a message or a conversation, it happens.
delete a message room
1. go to the chat and select the message room you want to delete.2. swipe it on ios, or long-press on android.
3. select "delete."
deleting sent messages
sent messages will be deleted from both your and your friend's whoo.1. press and hold the message you want to delete.
2. select "unsend."