Diagnosis
If the indicator Consider All Subitems in Interest Calculationis set in the interest key (field IALLZ in table TFK056A), transactionInterest Calculation Individual Processing (FPI1) checks whetherall subitems of the receivable were selected for a line item selection.

Example
Due to a partial payment, a receivable exists in several subitems andinterest is to be calculated.

System Response
The system includes the missing subitems in the selection.
If you have specified that only open or only cleared items are to besubject to interest calculation on the initial screen of theInterest Calculation Individual Processing, this setting alsoapplies for the subsequent selection. This means that the system doesnot select any cleared or open items.