WhatsApp allows you to read deleted Messages
At the beginning of last year, WhatsApp introduced the ability to deleting sent messages. But it turned out that there is a opportunity to restore similar messages of the interlocutor.
To do this, you need to delete the application and then install it again. After that, the chat history will be restored from the backup.
If the backup has been updated, then you will not be able to restore the deleted messages of the interlocutor in this way.
Updating the backup takes place at approximately 2 am on most messenger users’ devices.