Fi report certain transaction figure appear even posting dt is later

Question

hello experts
if a report is executed for a previous fiscal period, certain transactions  appear in the report even if the posting date is later.
  The transactions are reverse sales
i used this code to fetch the data with proj
   SELECT * FROM bsis INTO i_bsis
    WHERE bukrs EQ companycode
      AND hkont eq  (accountno)
      AND budat LE f_postingdate.    
    IF NOT fs_bsis-projk IS INITIAL.                         
      SELECT SINGLE projpspnr projpspid projpost1 prpsprctr                         
        FROM proj JOIN prps                         
        ON projpspnr EQ prpspsphi                         
          INTO it_pro                    
        WHERE prps~pspnr EQ i_bsis-projk.
       CASE i_bsis-shkzg.                    
        WHEN 'S'.                    
          i_mb = i_bsis-dmbtr.                    
        WHEN 'H'.
          i_mb = i_bsis-dmbtr * -1 .
      ENDCASE.
      COLLECT i_mb INTO e_mb1.
  endif
endselect.
in bsis i found reverse flag, if we use the flag to neglete the reverse posting in the previous fiscal period.
give me the suggestions
Thanks
john.

Answer 1

Any advice would be helpful. Thanks