Yes, deleted WhatsApp messages can often be recovered if you have a recent backup (Google Drive/iCloud) from before you deleted the messages; the process involves uninstalling and reinstalling WhatsApp and restoring from that backup, but you'll lose any chats after the backup date. If there's no backup, recovery is much harder, though sometimes possible for Android users via local files or using third-party tools, while iPhone users usually need specific software.
Note: When you delete a chat, it can't be undone. WhatsApp is unable to recover deleted chats for you. You can only recover deleted chats if your latest backup occurred prior to deleting a chat. Please be aware that you'll lose any chats that occurred after the latest backup.
To restore your chat history from your Google Account backup:
WhatsApp messages can be traced after they've been deleted because WhatsApp stores their source codes and destination codes for a period of time. On your device itself, deleted messages may be recovered using certain tools if new data has not overwritten it, or if they are saved in a backup.
Step 1: Uninstall the WhatsApp application from the mobile device and then reinstall it on the Android device. Step 2: After confirming the WhatsApp number, you must choose whether to restore the chats, media files, and data. Next, tap on the Restore icon to start the whole process.
Restoring your chats
To successfully restore your chats, you need to use the same phone number and Google Account or iCloud account you used to create the backup. We recommend performing a backup before uninstalling WhatsApp or moving to a new device.
We temporarily store your messages in encrypted form while they are being delivered. Once your messages are delivered, they are deleted from our servers. If a message cannot be delivered, we keep it in encrypted form on our servers for up to 30 days while we try to deliver it.
Investigators may look back years if they believe older conversations establish patterns, motives, or connections. “If the police didn't have them before, they can't get them now.” Digital forensics can uncover messages long after they were sent or deleted, especially if stored in backups.
Generally, deleted WhatsApp messages can be easily retrieved. The device needs to be subjected to digital forensic analyses. Can a private investigator get access to text messages? A private investigator cannot legally obtain your text messages without consent or a legal warrant.
Text messages deleted in Google Messages are permanently deleted and cannot be recovered; however, archived text can.
Remember that when you delete files here, the action is permanent and irreversible. These files won't move to the app's recycle bin — they're gone for good. Select the unwanted files cautiously, then choose the delete option to reclaim storage space on your phone.
We do not retain data for law enforcement purposes unless we receive a valid preservation request before a user has deleted that content from our service. In the ordinary course of providing our service, WhatsApp does not store messages once they are delivered or transaction logs of such delivered messages.
Manually delete text messages from Android phone:
A message doesn't completely disappear when it is erased. Rather, vestiges often wait to be recovered in backups or device storage. This makes it possible for forensic experts to use cutting-edge instruments and methods to retrieve priceless data. However, accuracy and knowledge are necessary for a successful recovery.
WhatsApp stores backups in Google Drive if you permit it. Depending on the interval you choose, the app uploads your data to the cloud daily, weekly, monthly, or only when you tap a backup button. Each backup to the same Google account overwrites the previous one, so you can't keep multiple versions.
Even though WhatsApp uses end-to-end encryption, making real-time interception nearly impossible, forensic examiners can often recover WhatsApp deleted messages, call logs, multimedia files, and location data from devices or cloud backups.
Here is the procedure on WhatsApp backup data recovery.