Chat messages you send to people or groups can be copied, edited, or deleted retroactively.
To modify a sent message, tap and hold the message until the edit menu appears:
Depending on how you want to modify your message, you can perform the following:
- Tap Copy to add the message to your clipboard.
- Tap Edit to modify your message, then tap Save.
- Tap Delete to delete your message, then tap Delete again to confirm.
Note: Deleted messages cannot be recovered.