I got this not-helpful error message when posting new content:
Failed posting to your Facebook Timeline. Error: {“message”:”(#100) You haven’t enabled Explicitly Shared for this action type (331247406956072) yet. Please update your Open Graph settings in the App Dashboard”,”type”:”OAuthException”}
I found the solution here:
David Farquhar is a computer security professional, entrepreneur, and author. He has written professionally about computers since 1991, so he was writing about retro computers when they were still new. He has been working in IT professionally since 1994 and has specialized in vulnerability management since 2013. He holds Security+ and CISSP certifications. Today he blogs five times a week, mostly about retro computers and retro gaming covering the time period from 1975 to 2000.