Fix Error: (#200) Requires either publish_to_groups permission and app being installed in the group, or manage_pages and publish_pages as an admin with sufficient administrative permission
This error occurs when you're trying to publish to a Facebook page and your app has not been reviewed and approved by Facebook.
The reviewal process can take about a week to complete but we've created a document to help you get through the process. Please see here:
If you have any questions or difficulties feel free to contact us here: we will help you as best as we can in getting your app reviewed and approved.