The Groups API
feature allows your app to access content in a Facebook Group. The allowed usage for this feature is to help people manage the posts and content published to their group or to get information about content posted to their Group. It can also be used to let people publish content from your app to their Facebook Group. This feature is often used with the publish_to_group
permissions. You may also use this permission to request analytics insights to improve your app and for marketing or advertising purposes, through the use of aggregated and de-identified or anonymized information (provided such data cannot be re-identified).