If the planning area that was created for the project was a copy (or partial copy) of the sample planning area, it is useful to compare the target planing area with the sample planning area over time. With each release, SAP delivers enhancements to the sample planning areas. Using the Compare option in the Planning Areas app it is easy to judge which of these enhancements should be merged or replicated in the custom planning area.
Comparing custom planning area to another custom planning area is also possible. The differences (that are grouped into categories such as General, Key Figures, Planning Levels and so on), can be exported to .CSV files.
The Merge option is available from the same screen. As you review the results of the compare, you can, for example, choose to merge key figures that are present only in one planning area to another planning area.