Actual sales qty forecast quantity in a single period calculation

Question

hi experts,
i have a report requirement to display the report in below format in bex.
Jan-05     Feb-05     Mar-05     Apr-05     May-05     Jun-05     Jul-05     Aug-05     Sep-05     Oct-05               
ACT     ACT+FC     FC     FC     FC     FC     FC     FC     FC     FC               
3,361       3,807       4,833       4,069       4,491       5,935       4,776       4,926       6,386       6,898            
312       342       457       381       393       544       439       445       634       676                                                          4,340       5,029       5,132            4,890           5,011             4,910             4,111            2,367             4,432
say for example we are february
in the bex report it has to display Actual sales qty for jan and act+forecast for feb and remaining months till december it has to display forecast quantities.
how can i achieve that in bex?
NOTE: ACTUAL SALES QTY, FORECAST QTY are two different keyfigures.
regards

Answer 1

******Actuals
  when 'ACC_SAL'.
      if i_step = 2.
        loop at i_t_var_range into st_var_range where
                                    vnam = 'UV_CAL'.
          st_range-sign = 'I'.
          st_range-opt  = 'BT'.
          st_range-low  = st_var_range-low. "cper.
**** Get Current Week.
*DT = DT - 27.
          CALL FUNCTION 'DATE_GET_WEEK'
            EXPORTING
              DATE         = DT     "SY-DATUM
            IMPORTING
              WEEK         = week
            EXCEPTIONS
              DATE_INVALID = 1
              OTHERS       = 2.
**** Get previous week
          DT = DT - 7.
          CALL FUNCTION 'DATE_GET_WEEK'
            EXPORTING
              DATE         = DT   "SY-DATUM - 7.
            IMPORTING
              WEEK         = PRV_WK
            EXCEPTIONS
              DATE_INVALID = 1
              OTHERS       = 2.
          if  week+4(2) = 01.
            st_range-low  = PRV_WK.
            st_range-high = PRV_WK.
          else.
            st_range-high = PRV_WK.
          endif.
          append st_range to e_t_range.
        endloop.
      endif.
*******Forecast
    when 'UNCONDDP'.
      if i_step = 2.
        clear: st_range, st_var_range.
        loop at i_t_var_range into st_var_range where vnam = 'UV_CAL'.
          st_range-sign = 'I'.
          st_range-opt  = 'BT'.
          CALL FUNCTION 'DATE_GET_WEEK'
            EXPORTING
              DATE         = SY-DATUM
            IMPORTING
              WEEK         = week
            EXCEPTIONS
              DATE_INVALID = 1
              OTHERS       = 2.
          st_range-low  = week.
          st_range-high = st_var_range-high.
          append st_range to e_t_range.
        endloop.
      endif.