Regrading IF statement

Question

Hi All,
Please check the below code in that i am able to fetch the w_duedate for first and third if condition.
But i am not able to fetch the w_duedate for the second if condition can anyone let me know how
deal with this issue.  I have made bold for the if condition which is not working.
IF fs_terms-ztag1 NE 0 AND
       fs_terms-ztag2 NE 0.
  w_days = fs_terms-ztag3.
     w_duedate = fs_bseg-zfbdt + fs_terms-ztag3.
         ENDIF.
    IF fs_terms-ztag3 EQ 0 AND
       fs_terms-ztag1 NE 0.
        w_days = fs_terms-ztag2.
     w_duedate = fs_bseg-zfbdt + fs_terms-ztag2.
    ENDIF.
    IF fs_terms-ztag2 EQ 0 AND
       fs_terms-ztag3 EQ 0.
    w_days = fs_terms-ztag1.
   w_duedate = fs_bseg-zfbdt + fs_terms-ztag1.
     ENDIF.
regards
VENk@

Answer 1

I dont know why it should not work.
At least this code is working in my system.
DATA: BEGIN OF fs_terms,
        ztag1 LIKE bseg-zbd2t,
        ztag2 LIKE bseg-zbd2t,
        ztag3 LIKE bseg-zbd2t,
      END OF fs_terms.
fs_terms-ztag1 = 12.
IF fs_terms-ztag3 EQ 0 AND
fs_terms-ztag1 NE 0.
  WRITE 'Valid condition'.
ENDIF.
"  Output : Valid condition
Of course , the assumption is that there is a non zero value in ztag1 field.
BR,
Advait