Marius,
Yes, my app is live/active (as noted in my original post). It is not in development mode.
Thoughts?
I’m having a similar problem, and I can’t seem to find a solution in the forums. I have a working, live Facebook APP, but Yoast doesn’t recognize it.
I created a support request – here’s the link to my issue, FYI: https://ww.wp.xz.cn/support/topic/yoast-says-that-facebook-app-id-doesnt-exist
