The Advising Group Code is defined in the Advising Group Detail panel on the Maintain Advising Groups window.
When you right-click on an Advising Group in the Advising Group Tree or in the Advising Group Tree panel, you can select the Add Advising Group option to add a new Advising Group. When you select this option, a blank row appears in the Advising Group Tree (see example) along with an empty Group Advising Detail panel for you to enter details about the Advising Group.
After you add the details and at least one advisor (which is the Primary Advisor) and save, the new Advising Group becomes available for selection in the Group drop-down in the Search/Filter By group box and also is added to the Advising Group Tree (see example).
The Group icon will designate an "incomplete" group when the group is inactive, does not have a Primary Advisor, or has no active advisors (see example).