Shoot! As we all know, Facebook is constantly changing and updating. We've recently heard from a handful of users that they're experiencing trouble with the "Schedule Now" tab on their business Facebook page, and it's looking like Facebook is no longer supporting this option. 😖
We're currently in the process of reaching out to Facebook to confirm the change, though if the "Schedule Now" tab on your Facebook page is no longer working, it's likely that this is the culprit.