pages_read_engagement
The
pages_read_engagement permission allows your app to read content (posts, photos, videos, events) posted by the Page, read followers data (including name, PSID), and profile picture, and read metadata and other insights about the Page. The allowed usage for this permission is to help a Page Admin administer and manage a Page. 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).