how long does facebook keep messages
Confidence votes 2.3K. They will be stored there forever until you delete them. Even after you delete them, they will stay stored on Facebook's servers for 30-60 days until they are finally permanently deleted by their servers.o answer/reply to a Facebook message all you need to do is go onto  the message you want to reply to. Under what you have been sent  there is a blank bar so type in your me â¦ ssage then on the right  click reply. + 26 others found this useful. Anthony Alves.