What are content notifications?
Content notifications let you get notified about actions relating to content you have authored or contributed to.
When someone likes, shares, comments or replies to a comment on an item of content you have authored or contributed to (edited at some point during the publication process) you will automatically receive notifications relating to each event.
These notifications can be turned on or off for individual items of content from the options menu (...). Select Page notifications (where page represents the content type) and then turn notifications on or off. These notifications apply only to the content item and not comments and replies.