How can I permanently delete WhatsApp backup?

Deleting your WhatsApp account releases any information you have stored on their servers, which includes all messages and phone numbers. However, even if you did back up your data to the service previously, it will still be deleted when the account is shut down.

Tap and hold Databases. Tap the delete button or trash can icon. Confirm deleting Databases.

In the chat containing the message, left-click and drag to highlight it. From there you can delete it in one of two ways depending on if you want to just delete it for yourself or all recipients (i.e., deleting from your phone but not someone else’s).

WhatsApp sends a text message to phone numbers and email addresses on the web.

When you clear WhatsApp data, your chats will be deleted. But if you go to Settings in WhatsApp and tap “Chat Settings” and then tap “Backup,” this sends a copy of all messages stored on your device back up to Google Drive so they’re not lost forever (which is good news for anyone who ends up performing a factory reset). You can also backup from the phone itself should it ever need resetting as well.