Quality content is paramount to the success and reputation of any Facebook
page. If you are a Facebook page administrator and are looking for a way to manage the vast amount of content flooding into your page on a daily basis, you may find Facebook's content review
feature quite useful. This tool will allow you to control your content without having to monitor your page 24/7.
Sign in to your Facebook Page
, and go to Settings
Edit the Posting Ability
section, and tick the Review posts by other people before they are shown on my Page
Click on Save Changes