Open Snapchat
Tap the Chat icon
Open the conversation
Press and hold the message you want to delete
Tap Delete
Tap Delete again to confirm
To delete an entire chat
Go to your Chat list
Press and hold the conversation
Tap Chat Settings
Tap Clear from Chat Feed
Confirm the action
To delete a saved message
Open the chat
Press and hold the saved message
Tap Unsave
Press and hold the message again
Tap Delete
Tap Delete again to confirm
To delete a message you sent before it is opened
Open the chat
Press and hold the message
Tap Delete
Tap Delete again to confirm