Our second principle of Grouper good practice is:

• Whenever possible, use ‘Corporate Data’ groups to control memberships of your groups.

This is a straightforward, unambiguous and just plain sensible principle.

Membership of the ‘Corporate Data’ groups are populated with data from our corporate data source systems and are updated automatically. Using these groups to build up the membership of your groups means that the members of your groups will be updated automatically, too.