Sometimes I hate this feature too much because my friends are literally messaging anything and delete it before I see it, And they also won’t tell me what they’re messaging, So that is why I found a method to see unsent Messages on Messenger.
If someone deletes or unsent a message on Facebook messenger then you are not able to see it anymore and that is because deleted or unsent a message on Messenger will be permanently removed from that chat. The person has to select “Unsend for everyone” instead of “Unsend for you”.
The “Unsend for Everyone” feature is similar to Whatsapp’s feature “Delete for Everyone”.
In This How-To Guide, you’ll know how to See Unsend Messages on Messenger for iPhone and Android (With or Without an App)
How To See Unsend Messages on Messenger With Notisave App

To See unsent messages on Messenger, You need to download an App “Notisave” it is easily available on Google Playstore, you don’t need to download it from somewhere else because it can be virus or something else.
Notisave is a status and notifications saver app that can automatically save messages on Messenger. This is happening because this app can autosaving notifications that are shown on your notification bar, There you can also search for your notifications from all apps at once, This App Supports Messenger and also other messaging apps like Whatsapp, Telegram, and more.
- Download Notisave on Google Play.
- You need to “Allow” access to notifications by turning on “Notisave”.
- You also need to “Allow” access to your photos, media, and files.
- Tap on the three dots and Open “Settings”.
- Tap on “Save Notifications”.
- Turn on “Messenger”.
That’s it After you will be turned on “Messenger”, Messages notifications from Messenger will be automatically saved on Notisave App and if someone unsent a message on messenger, Just you have to open Notisave App and you will be able to see all the unsent messages.
Note: You Should have to enable Messenger Notification to work, otherwise This app will be not able to see your Messenger notifications.
Unfortunately, Notisave is only available for Android Devices, not for iPhone/IOS Devices.
See Unsend Messages on Messenger Without App

You need to turn on “Notification history’ in your notification settings, To see unsent Messages on Messenger without an app.
This will save messages that you will receive on Messenger before it gets unsent, But this method only works for some Android devices because every Android device doesn’t have the “Notification history’ Feature.
Here’s down below Step-To-Step Guide for you To Turn on the “Notification History” Feature.
- Go to your Device settings.
- Tap on the “Notifications” option.
- Open “Advanced settings”.
- Turn on “Notification history”.
Now, You are able to see unsent messages on Messenger by navigating to your Messenger notification history.
Now it’s Done, You can go with this method if you have this feature on your android devices otherwise just download the “Notisave” App and follow every step to save Messenger messages.