In Profitability Analysis, master data provides the fundamental data and content within thestructures you have already determined by characteristics and value fields.
The system uses the combination of characteristic values to automatically create during a posting the affected market segment, that is theprofitability segment that is being posted to. The specifications you make for the characteristic values form the basis for the automatic determination of the profitability segment.
You can also specify for value fields which principles are to be applied for automatically determining further characteristic values and setting these values in the value fields when additional data is posted. For more information, see the sections dealing withValuation.