-ve values when using record mode in ODS delta

Question

Hi
We have an ODS where we are calculating the number of items using update routine.  I'm not sure if the below code is correct.
I'm getting -ve values in my item count for delta loads from ODS to cube. ODS data (active) looks correct. But Cube data is showing -ve item count.  I guess I should remove the below code to count the number of items correctly ( if COMM_STRUCTURE-recordmode EQ 'X' ) from ODS update rules . Can any one please go through below and advice.
  IF COMM_STRUCTURE-PROCESSKEY = '001'        "Purchase Order
    RESULT = 1.
         if COMM_STRUCTURE-recordmode EQ 'X'.
         RESULT = -1.
         endif.
ELSE.
    RESULT = 0.
ENDIF.
Thanks
Sam

Answer 1

Thanks very much for the blog. But I already knew this as I checked it before. Now my issue is our logic is brining -ve values in to Infocube...Here is what I have in ODS Active , Changelog and Cube. I want to make the cube result same as ODS active data:
Active:
  OI_EBELN   OI_EBELP DOC_CAT COMP_CODE PUR_GROUP  ORDER_VAL PO_ITEMS
  4700020064       10 F       1004      907       10.000,00    1,000            
Changelog:
   OI_EBELN   OI_EBELP DOC_CAT COMP_CODE PUR_GROUP    ORDER_VAL PO_ITEMS
                                                 20.000,00    2,000              2              0
Infocube:
COMP_CODE PUR_GROUP    ORDER_VAL PO_ITEMS
          10.000,00     6,000-     0     1