By default, some properties in system objects are already defined. For instance, most system objects are named and have unique codes. For the most part, defining these objects is a matter of configuring general system object information and defining categories, search views, and rules. For details, see Customization Sequence and General System Object Information.
If your design includes invoices, you may need to configure line item views according to the organization's requirements. For details, see Customizing Invoice Line Item Views.
There are three TeamConnect system objects, which unlike other system objects, have a simplified object definition procedure. They are Contact Group (called Address Book in the end-user interface), User, and Group objects. Because of their functionality, they do not require categories, custom fields, rules, or wizards. This functionality is reflected in the set of tabs they have in their object definition screens.
Contact Group (Address Book), Group, and User System Object Definition Tabs