SAPNote 23731 - CJ40: Only one WBS element in cost element planning

Symptom:

When you access cost element planning (primary costs KPP2 and activity input KPR2) via the work breakdown structure (CJ40/CJ41), and after executing function 'Swap dimensions...', only one element is displayed the 'Dimension WBS elements' screen, even though you selected several WBS elements in the structure.

Cause and prerequisites

The branch from the WBS to cost element planning always refers to the
first of the selected WBS elements, since groups of WBS elements cannot
be set up. Consequently, only the one WBS element is displayed when you execute 'Swap dimensions...'.

Solution
You need to plan the WBS elements of a WBS separately.