How to work with feed notifications
You will be informed if someone mentions you in a post, comments on or likes your posts in the feed. The feed notifications are displayed on the 
tab in the notification center. The number on the tab displays the total number of unread feed messages.
The tab gives notifications about the following events:
•Someone commented on your message in the feed section;
•Someone mentioned you in a message or in a comment;
•Someone liked your post or comment.
After opening the tab, all new notifications will be marked as read and will not be displayed on the tab. If a new notification is received when the tab is open, the notification will be marked with a gray color and it will be added to the notification count. Click a notification to mark it as read. As a result, the emphasis will be removed.
See also
•How to work with approval notifications
•How to work with noteworthy event notifications
