This error means Facebook refused a link message because the link goes to Facebook, such as a Facebook event. It can happen on any plan.
What the error says
Facebook denied CoSchedule's request to send this message. Facebook does not allow you to share Facebook links when publishing a link message.
Why it happens
Facebook doesn't let apps publish a link message that links to Facebook, such as a Facebook event, Page or post. This applies to CoSchedule and every other app.
Fix it
- Share the link directly on Facebook.
- Or send it as an image message with the Facebook link in the message text, then reschedule it.
Can CoSchedule publish Facebook events?
No. CoSchedule can't create or publish Facebook events. Create the event on Facebook.