Deleting Standard WBS Elements 

Standard WBS elements deleted using this procedure cannot be retrieved.
You cannot delete or archive standard project definitions.
- From the main R/3 menu, select Accounting or Logistics
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Project management
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Basic data.Select Standard Structures
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Standard WBS
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Change.
The initial screen is displayed.
Enter the identifier for the standard WBS and choose Structure.
Select the standard WBS element(s) that you want to delete.
Choose Edit
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Object
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DeleteThe selected standard WBS elements are physically deleted from the database.
Save.