Facing consequences after making a mistake is inevitable but on WhatsApp you can rather undo the mistake now. Don’t be happy as Larry yet because you still have to delete the messages you have sent by mistake, can’t really undo that. However you can now undo the ‘Delete for me’ action in case you have accidentally deleted a message that you potentially wanted to delete for the receiver.
The new offering is available for all Android and iPhone users around the world so yes you can also use it. There will pop an ‘Undo’ button at the bottom when you delete a message that was supposed to be deleted for others. By pressing the button, the deleted message will show in your chat again.
But remember, the undo button only works when you accidentally delete a message for self, not for everyone. So you still have to be careful!