User-Defined Objects 
Use
Use the User-Defined Objects to add new business logic or new objects to SAP Business One. These objects are created with the help of the SAP Business One existing functionality.
You can create the following types of objects:
· Master data. For example Business Partner
· Master data lines. For example, the Address in the Business Partner Master Data
· Documents. For example, the A/R Invoice
· Document line. For example, the Contents tab in the A/R Invoice
In addition, services for the new object can include history and log information.
To add a user-defined object, you must have a registration - the User-Defined Registration Wizard. As an option, we recommend the Object Implementation - currently we support C++ objects only.
Create a table before you create an object, and then link it during the registration. While you create the table, create an additional new field to set the table type. Additional fields, including all the default properties, are added by SAP Business One automatically.
To access the Registration Wizard, choose Tools ® User-Defined Objects ® Registration Wizard.
For more information, see http://help.sap.com
See also: