Some records are missing in the mail, when scheduled a background job.

Question

There is a Z report,  which will display some details from SD, MM , WM every day , and the same thing need to be mailed to the user through background Job.
Issue is that spool is correct and it is missing some records ( Billing due list ), even internal table have records and displayed in the spool , in the mail it says
“No Entries Found”.
Is there any chance of debugging background job.
Good thing is that when executed in foreground it is working fine. Both mail and report display.

Answer 1

EM_BODY = '4) VF04 -- Processing Billing document due list.'.
  APPEND EM_BODY.
  EM_BODY = ' '.
  APPEND EM_BODY.
  IF IT_FINAL3[] IS INITIAL.
    EM_BODY = '        No Entry Found'.
    APPEND EM_BODY.
    EM_BODY = ' '.
    APPEND EM_BODY.
  ELSE.
    CONCATENATE 'Delivery No' 'Created By' 'Created On'
                 'Reason' INTO HEAD SEPARATED BY '     '.
    EM_BODY = HEAD.
    APPEND EM_BODY.
    EM_BODY = ' '.
    APPEND EM_BODY.
    CLEAR V_TEXT.
    CLEAR ITEM.
    LOOP AT IT_FINAL3.
      CONCATENATE IT_FINAL3-VBELN  IT_FINAL3-ERNAM IT_final3-ERDAT
                  IT_FINAL3-RESO INTO ITEM SEPARATED BY '     '.
      V_TEXT = ITEM.
      EM_BODY = V_TEXT.
      APPEND EM_BODY.
    ENDLOOP.
    EM_BODY = ' '.
    APPEND EM_BODY.
  ENDIF.
This is the part where it is failing, where it_final3[] is initial.
but whereas in the spool i can view those records.