If you see a red number for a feature in the ribbon, there are new, unchecked entries in the relevant area. These could have been added by yourself or by other users.
Special attention should be paid to the area
Resources -> Person groups, data categories, data types
New entries here should be checked and categorized if necessary.
Clicking on the entry ensures that it has been checked/read and the marking disappears.
If there are a large number of new entries whose origin you are aware of, you can use the Mark all as read option to save yourself time.
