If you are searching for how to read deleted messages on WhatsApp, you are in the right place.
There are several methods you can try to read the deleted messages.
You know that there are no built-in features in WhatsApp for this. But I have two solutions.
You can try Android's built-in features that will help a lot. Either you have to use third-party apps.
If your mobile running Android 11 or a later version, you can view WhatsApp deleted messages without the use of a third-party app.
Just enable settings. Open settings > Notifications > Notification History > Enable the toggle button before the Use notification history.
If you agree to use any third-party apps then you can try to "Get deleted messages" apps from playstore.