Previous to previous year figures

Question

I am developing balance sheet report in BI.
                                                  December 2008                            December 2007            
As at the commencement of the year              Mar 2008 (016.2007)                    Mar 2007 (016.2006) 
                                                VARIABLES:
                                                0P_FPER
                                                0I_BA107
Where December 2008 is taken as an example. It is the selection criteria based on 0FISCPER.
I am getting values for December 2008 using variables 0P_FPER and  0I_BA107.
But I am not getting the variable to get Mar 2007. This variable should give me the value of the last period for previous to previous year with reference to period selected in selection criteria. Most probably I need to write user exit variable. Can anybody send me the link/document for the same.

Answer 1

Hi Shailesh,
  Regarding the I_STEP, few details are as follows:
If you execute a query that contains variables with the customer exit replacement path (and these variables are filled depending on input-ready variables), sometimes, the variable exit is not run or incorrect data is selected. To avoid this, you can control the dependencies using the I_STEP parameter.
The I_STEP parameter specifies when the enhancement is called.The values corresponds to:
   I_STEP = 1
Call is made directly before variable entry.
  I_STEP = 2
Call is made directly after variable entry. This step is only executed if the same variable is not input-ready and could not be filled for I_STEP = 1.
I_STEP = 3
In this call, you can check the values of the variables. When an exception (RAISE) is triggered, the variable screen appears again. I_STEP = 2 is then also called again.
I_STEP = 0
The enhancement is not called from the variable screen. The call can originate from the authorization check or from the monitor.
Example:
In the following example, the current month is taken from an input-ready variable MONTH; this is then used to generate an interval that cumulates all months from January ('01') up to the current month. The customer exit variable CUMMONTH contains the interval as the value.
DATA: L_S_RANGE TYPE RSR_S_RANGESID.
DATA: L_S_VAR_RANGE TYPE RRRANGEEXIT.
CASE I_VNAM.
WHEN 'CUMMONTH'.
IF I_STEP = 2. "after the popup
READ TABLE I_T_VAR_RANGE INTO L_S_VAR_RANGE WITH KEY VNAM = 'MONTH'.
IF SY-SUBRC = 0.
CLEAR L_S_RANGE.
L_S_RANGE-LOW = LOC_VAR_RANGE-LOW(4)."low value, for example, 200601
L_S_RANGE-LOW+4(2) = '01'.
L_S_RANGE-HIGH = LOC_VAR_RANGE-LOW. "high value = input
L_S_RANGE-SIGN = 'I'.
L_S_RANGE-OPT = 'BT'.
APPEND L_S_RANGE TO E_T_RANGE.
ENDIF.
ENDIF.
ENDCASE.
Hope this is informative!
Best Regards,
Akshata