Originally Posted by
Coffee You can use the messaging app to set up facebook chat, the only problem with that is that I'm pretty sure it imports all your facebook contacts to your People Hub. If that's okay with you, try it out. If you go into messaging app, then slide over to 'online' and set your status to 'available', it should ask you if you want to set up facebook messaging.
If it doesn't, you can set it up in your Settings->Accounts.
İ set up messaging app to facebook app already,i can use it. There is no problem about it,problem is my messages are delivered but some friends can't send messages using facebook chat. They receive the warning i mentioned. When they try to message me using messaging page of facebook,it works. When i use pc for facebook,it is same.