Board Thread:Support Requests - Community Management/@comment-25405426-20161222220741/@comment-168424-20161231194509

I think you need to make a Facebook page for your wiki and then check out Help:Social media integration. I'm not sure how the admin tasks tracker knows what your Facebook page is, though.

There's always Special:Contact/general and ask specifically what you need to do... and why there isn't an easy to find help page for this.