The inability to publish facebook.com links (i.e. https://www.facebook.com/*) is a technical limitation imposed by Facebook - as Facebook says, "this is related with the recent changes on privacy."
You might end up with one of the following publishing errors:
Facebook error: Permissions error (code 200, subcode 1609008)
Facebook error: The url you supplied is invalid (code 1500, subcode 1611248)
There are multiple "types" of facebook.com links - Facebook events, Facebook group posts, Facebook page posts, etc. - and different privacy restrictions are applied to each of those. Below you can find an overview of what is possible to publish and what is not:
Type of link
Can be published from Agorapulse?
Admin post in Facebook Group
Member post in private Facebook Group
Member post in public Facebook Group
Facebook Page post/photo
Facebook Page video
Facebook Page photo album
Facebook Profile (link to someone's personal profile)
Facebook Profile post (someone's personal post)
*Publishing a link to a member post from a private Facebook Group can only be viewed if you are logged into Facebook and are a member of the private Facebook Group.
Please be aware that due to Facebook ToS, we're unable to provide a preview (image, title, etc.) of the link from facebook.com (or instagram.com) domain.