Creating Standard Work Breakdown Structures 

Before you create a standard work breakdown structure, you should plan the work carefully since it is not possible to delete or archive standard project definitions. You can only delete or archive individual standard WBS elements.
The procedure for creating a standard work breakdown structure is basically the same as for creating a normal work breakdown structure, however some functions such as document management, progress analysis or settlement rules are not available. When you create a standard WBS a standard project definition is automatically created. We recommend that you read the information in
Work Breakdown Structure (WBS) before you create a standard WBS.See also:
Creating Standard Work Breakdown Structures by CopyingFor information on user fields in standard project definitions and standard WBS elements, refer to the IMG for the Project System.