As a matter of fact, I stole that question directly from the Facebook Help Center :D But their answer doesn’t work!! :( I follow their steps, but I just can’t find my chat histories anywhere :'(
Their answer is here.
It says: “A history of all your chats is also included as part of your conversations within Facebook Messages along with all your messages, texts and emails.”
But there is nothing!! A couple of days ago I was for sure chatting in Facebook with a friend but that discussion is nowhere in my messages. Any ideas what I am doing wrong? Thanks in advance for your help!