You can hide or delete the history of a direct message conversation in Google Chat and Gmail.
- Hide conversation—Removes your copy of a conversation. It doesn't remove the conversation from other participants' views. If you hide a conversation and then chat with that person or group again, your chat history reappears (if it's turned on).
- Delete conversation—Permanently deletes your copy of a conversation's history. It doesn't delete the conversation from other participants' history.
Hide a direct message conversation
Delete a direct message conversation
You can't delete your history for group conversations with 2 or more people.
To delete a single message instead of a conversation, go to Edit or delete a message.