If you no longer need a contact group you created, you can delete it in Business Communicator to make looking for your groups easier. You can also manage the group by adding and removing contacts as needed.
To delete a contact group:
In the main window, click Contacts (the silhouette icon).
On the list of contacts, find the group you want to delete; then right-click on the name of the group.
In the group contacts section (right above My Contacts), click on the arrow to expand the section.
From the list, click Remove [the name of the group].