You can use this function module to complete the line item table for the interest calculation. The line items are selected afresh for each CO object (views: COVP, V_COFP).

The interest relevance check can be made in one of the following ways:

• The standard interest relevance check is used. In this case, only one line item selection is necessary in the User Exit. To this end, the indicator DEACT_FILTER must be returned empty to the accessing program.
• The standard interest relevance check is not used for any items selected in the User Exit. To this end, enter "X" in the DEACT_FILTER indicator.
  

Program structure:
CO-Object selection
Line-item selection (Interest relevance check)
User-Exit 1 (Enhancement: KPSHZIN1). <---
Loop via interest indicator table
loop via line item table.
User-Exit 2 (Enhancement: KPSHZIN2).
Fill interest calculation table
Interext calculation
User-Exit 3 (Enhancement: KPSHZIN3).
Update
endloop.
endloop.

Function/Program:

• EXIT_SAPLHFC1_001: Project Interest Calculation: Modification Of Line-Item Table