These can include: 

• A goal having been created, edited or completed. 
• A company objective having been created or completed. 
• An absence having been approved or rejected. 
• An absence having been added on your behalf by a manager or admin. 
• Thanks having been given by another user. 
• A company broadcast having been sent. 
• An appraisal has been booked. 
• A user has been given admin level access. 
• A checklist task has been completed. 
• Someone has posted on your profile wall. 

If you would like to view historic activity, simply click more updates at the bottom of the feed.