interest calculation excluding debit notes on contract accounts on transaction FPINTM1

[isaac_ndaona]

The business users have requested that interest be calculated for all amounts that are overdue including for the amounts posted through debit notes (document type AB, etc..) The standard functionality does not include these documents and we do not want to create a custom program for this requirement but enhance the standard functionality. Can anyone suggest a solution?

[isaac_ndaona]

There is no difference between FPI1 and FPINTM1 on the amounts that are selected for interest calculation.The exclusion of the manually posted amount is maintained in the standard interest calculation program where all documents with origin 01 are excluded. There is no interest lock on the contract account because the other amounts posted as invoices or prior interest due are included as base amounts for the interest calculation.

See below

[william_eastman]

There is no standard exclusion for 01 items. Something else is happening here.