A method and system for integrating user-defined objects into a business management application. A mode is selected with which to add a user-defined object in the application having a base class of objects with a base class of services. Information is received to define the user-defined object. A selection is received of at least one service from the base class of services to be associated with the user-defined object. At least one field associated with the user-defined object is received for display. Additional information may be received to define a son object of the user-defined object. Business logic may be received to be added to the application. The user-defined object and related information are registered with the application. The integrated user-defined object thereby automatically inherits the selected at least one service from the base class of services of the business management application.