Errors in Transfer Routine for 0MATERIAL_ATTR

Question

I created a transfer routine on the 0Material_attr upload that needs to populate an attribute called Z_CPFX.
Problem is, I need to look at the material number, material group, and the Material Description, and then populate the result based on what I find.
I am new to using ABAP in these routines, so any help would be appreciated.  I will award points.
The error I keep getting is E:Field "TRAN_STRUCTURE-MATNR" unknown.
Could somebody take a look at my ABAP and advise what I'm doing wrong?
Thank you.
Ken
$$ begin of routine - insert your code only below this line        -
DATA: l_s_errorlog TYPE rssm_s_errorlog_int.
  DATA:   X_DESCRIPTION TYPE TABLE OF /BI0/TMATERIAL.       " KC01
    select  *
          into CORRESPONDING FIELDS of Table X_DESCRIPTION
         from /BI0/TMATERIAL
        where tran_structure-matnr = /BI0/TMATERIAL-matnr.
  IF MATKL between 765 and 770.
    RESULT = 'MAPOO'.
  ELSEIF MATNR(1) = 'X'.
    RESULT = 'MAPOO'.
  ELSEIF MATNR(1) <> 'X'.
    AND (MATKL = '750'
          OR MATKL = '751'
          or MATKL = '755'
    RESULT = 'MAPWK'.
  ELSEIF
    (MATKL = '756'
    or MATKL = '760'
    or MATKL = '761'
    and X_DESCRIPTION-TXTMD co 'renew'.
    RESULT = 'MAPRK'.
  ELSEIF
  (MATKL = '756'
  or MATKL = '760'
  or MATKL = '761'
  and X_DESCRIPTION-TXTMD !co 'renew'.
    RESULT = 'MAPMM'.
  ELSE.
    RESULT = space.
  ENDIF.
returncode <> 0 means skip this record
  RETURNCODE = 0.
abort <> 0 means skip whole data package !!!
  ABORT = 0.
$$ end of routine - insert your code only before this line         -
ENDFORM.

Answer 1

Hi Kenneth,
/BI0/TMATERIAL is the text table for 0material. If you are trying to get all the data from text table, please correct your select statement as below (text table does not contain the attributes. you might need to chenge the selection table to its attribute tables):
select *
into CORRESPONDING FIELDS of Table X_DESCRIPTION
from /BI0/TMATERIAL
where tran_structure-matnr = /BI0/TMATERIAL-MATERIAL.
I also see that some of your syntaxes are wrong:
eg: IF MATKL between 765 and 770. ==>
IF( ( MATKL > 765 ) and ( MATKL < 770 ) ).
Please look into the syntaxes of other statements as well.