Error when executing report due to 0FISCPER

Question

Hi All,
I am using a customer exit in my query to calculate the year to date numbers for current Fiscal Period and prior fiscal year (via offset -12). When I execute the query it works fine but when I save it to my portal favorite and re-execute from the favorite, it throws an error: 
Termination message sent
ERROR BRAIN (648): Variable value  must be numeric
ERROR BRAIN (599): For characteristic 0FISCPER, enter value in a permitted format
  MSGV1: 0FISCPER
  MSGV2: 200/001/
ERROR BRAIN (599): For characteristic 0FISCPER, enter value in a permitted format
  MSGV1: 0FISCPER
  MSGV2: 200/005/
ERROR BRAIN (648): Variable value  must be numeric
ABEND RSBOLAP (000): Program error in class SAPMSSY1 method : UNCAUGHT_EXCEPTION
  MSGV1: SAPMSSY1
  MSGV3: UNCAUGHT_EXCEPTION
Here is my customer exit code. Do you see any issues with the exit that is causing the above error?
DATA: lv_cur_period(3) TYPE n,
          lv_cur_year(4) TYPE n.
   WHEN 'ZCC_FPER_YTD_INTERVAL'.
     IF i_step = '1'.
Determine current fiscal period
       CALL FUNCTION 'DATE_TO_PERIOD_CONVERT'
         EXPORTING
           i_date               = SY-DATUM
           i_periv              = 'MR'  
        IMPORTING
          E_BUPER              = lv_cur_period
          E_GJAHR              = lv_cur_year
        EXCEPTIONS
          INPUT_FALSE          = 1
          T009_NOTFOUND        = 2
          T009B_NOTFOUND       = 3
          OTHERS               = 4
       IF sy-subrc <> 0.
       ENDIF.
Enter interval into variable
       CONCATENATE lv_cur_year '001' INTO l_s_range-low.
       CONCATENATE lv_cur_year lv_cur_period INTO l_s_range-high.
       l_s_range-sign = 'I'.
       l_s_range-opt = 'BT'.
       APPEND l_s_range TO e_t_range.
     ENDIF.
Thanks a bunch.

Answer 1

Hi Venkat and Gaurav,
Thanks for your replies. The format of Fiscal Period in the first variable screen is correct with the Concatenate statements that I originally had in the customer exit. It displays an interval of 001/2010 - 005/2010 which is what I want.
CONCATENATE lv_cur_year '001' INTO l_s_range-low.
CONCATENATE lv_cur_year lv_cur_period INTO l_s_range-high.
I created another i_step = 2 variable with 'ready for input' unchecked and added it to the original i_step = 1 variable within the RKF. As I have limited knowledge of coding customer exists, I added the following code for the 2nd variable that I found on SDN as seen below. After applying this code and executing the "saved report on portal favorite", the original error message went away and I get to the variable screen but the format that displays now is 201/001/ - 201/005/.  Why does it work the first time it is executed and why does it mess up the format when executed from portal favorite, really confused.
   WHEN 'ZCC_FPER_YTD_INTERVAL_2'.
     IF i_step = '2'.
       READ TABLE i_t_var_range WITH KEY vnam = 'ZCC_FPER_YTD_INTERVAL' ASSIGNING
                      <input>.
Determine current fiscal period
       CALL FUNCTION 'DATE_TO_PERIOD_CONVERT'
         EXPORTING
           i_date               = SY-DATUM
  I_MONMIT             = 00
           i_periv              = 'MR'  
        IMPORTING
          E_BUPER              = lv_cur_period
          E_GJAHR              = lv_cur_year
        EXCEPTIONS
          INPUT_FALSE          = 1
          T009_NOTFOUND        = 2
          T009B_NOTFOUND       = 3
          OTHERS               = 4
       IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
       ENDIF.
Enter interval into variable
       CONCATENATE lv_cur_year lv_cur_period INTO lv_cur_fiscper.
       l_s_range-low = lv_cur_fiscper.
       l_s_range-high = <input>-low.
       l_s_range-sign = 'I'.
       l_s_range-opt = 'BT'.
       APPEND l_s_range TO e_t_range.
     ENDIF.