Messages that have already been sent cannot be unsent or removed from the recipients inbox. If you delete a message or conversation on your end, this means it will still be available on the recipients account unless they delete it themselves..
Simply so, can someone see if you delete a conversation on Facebook?
Yes they will. You have total control over the messages you have sent or received within your own account, and your messaging partners have total control from their end as well. The only way you can get a message (or entire message thread) deleted on the other end is if they agree to delete it.
how do I permanently delete my Facebook messages on both sides? How to delete Facebook messages on both sides:
- Tap and hold the message you want to delete.
- Click “Remove.”
- Select “Remove for Everyone.”
- Confirm removal of the message.
- A tombstone will appear in the message thread, stating “You removed a message.”
In this manner, when you delete a message on Facebook does it delete for the other person?
Using "delete" in the messenger deletes the message in your version of the thread but not the recipient's. So deleting a message or conversation from your inbox won't delete it from your friend's inbox. It isn't possible to delete sent or received messages from a friend's inbox.
Does deleting a Facebook conversation delete both sides?
No, you can only send your message. If someone sends a message or a photo that you do not like, you can delete it from the side of the conversation.
Related Question Answers
Why can't I remove a message for everyone on messenger?
It turns out that when people are deleting messages because it's a mistake or they sent something they didn't want to send, it's under a minute. People with access to the feature can tap and hold on a message they sent and select Remove, and they will see options for Remove for Everyone or Remove for You.Does Blocking someone on Facebook delete messages?
If You Block Someone, Does It Remove the Conversation Nope. Blocking someone will not delete the conversation thread from any side. In other words, the old conversations will remain in Messenger, and you will be able to read them until you manually delete the chat thread.Do people get a notification when you delete a message?
When a message is deleted, other users in the same chat will be notified that a message was deleted. Of course, there's still one major workaround: Determined users can screenshot the message if they truly want to keep evidence of it.How do I permanently delete Messenger messages?
Steps - Open Facebook Messenger. It's a white app with a blue message bubble and white lightning bolt inside.
- Tap the Home tab. It's the house-shaped icon in the bottom-left corner of the screen.
- Scroll to the conversation you wish to delete.
- Swipe left over the conversation.
- Tap Delete.
- Tap Delete Conversation.
How do you delete messages on messenger so the other person cant see it?
It isn't possible to delete sent or received messages from a friend's inbox. However there is some workaround is to mark the message as Spam or Abuse (in Actions), then delete it from your messages, and disable/deactivate your account (and re-activate it after few hours), so both people won't see it.Can a blocked person still be able to see past conversations?
Although they can't message your after you block them, you'll still be able to see past conversations unless you delete them.Can you tell if someone deleted messages on messenger?
From the More dropdown menu in your Messenger inbox, tap Archived. Here, you'll see all the messages you've archived. Hopefully, you'll find your “deleted” message here. (Alternatively, you can search the contact's name in the search bar, and your full conversation history should pop up.)Does unfriending someone on Facebook delete messages?
Your messages will still be there after unfriending unless you delete them. If you block the person, the messages will remain, but their name will not be associated with it. It will just say "Facebook User."What happens to your messages when you block someone on Facebook?
When you block someone, they'll no longer be able to contact you (example: send you messages, call you) on Messenger or on Facebook chat. You can also ignore a conversation, turn off notifications for a conversation, or delete a conversation.How do I erase Facebook Messages?
Go to your messages inbox by clicking Messenger in the top left of Facebook. Open the conversation you want to delete. Hover over the conversation you'd like to delete and click . Select Delete > Delete.Does deleting Facebook delete messages?
The short answer to your question is yes. On Facebook, a message is delivered to the recipient's inbox just as soon as you press the Enter key. And it'll stay in the recipient's inbox until he or she deletes it, even if your own account is no longer active or has been deleted.How do you delete Facebook messages after every time limit?
To use the unsend feature, tap and hold on a message you sent, then select “Remove.” You'll get options to “Remove for Everyone” which will retract the message, or “Remove for you,” which replaces the old delete option and leaves the message in the recipient's inbox.What happens when you permanently delete Facebook?
What happens if I permanently delete my Facebook account? You won't be able to reactivate your account. Your profile, photos, posts, videos, and everything else you've added will be permanently deleted. You'll no longer be able to use Facebook Messenger.Does the other person know when you delete a conversation on Facebook?
Hi Christine, Messages that have already been sent cannot be unsent or removed from the recipients inbox. If you delete a message or conversation on your end, this means it will still be available on the recipients account unless they delete it themselves. 
