How to Check Characterstic Values assigned for a material

Question

Hi ,
My requirement is , to  check  each and every material entered in the selection screen  and characterstic values assigned to this,
I dont need characterstic values  for a material, i have to check whether characterstic values assigned or not , if not i have to give a message..
I used  CLAF_CLASSIFICATION_OF_OBJECTS FM  for  getting charactersic values
it is giving NO classification found , but for tghat material classification is existing subsequently characterstic values are also there, i passed material no with leading zeros also.
i used WMCL_MAT_READ_CHAR_VALUES FM also  , but it is giving  No charcterstic values found for that Material  but characterstic values are assigned for that Material..
Could u please find out ,where  i am missing

Answer 1

THIS MATERIAL HAS CLASSIFICATION VIEW  AND CHARACTERSTIC VALUES ALSO MAINTAINED
DATA : MATNO TYPE AUSP-OBJEK,
      L TYPE I,
T_CLASS TYPE STANDARD TABLE OF  SCLASS ,
T_OBJECTDATA TYPE STANDARD TABLE OF  CLOBJDAT.
MATNO ='631165'.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
  EXPORTING
    input         = MATNO
IMPORTING
   OUTPUT        = MATNO
"use this function moduel...
*Retrieve Batch class , characteristic name and values for Material
  CALL FUNCTION 'CLAF_CLASSIFICATION_OF_OBJECTS'
    EXPORTING
     class              = 'ZCA2535'
      classtype          =  '023'
     features           = 'X'
      language           = 'E'
      object             =  MATNO      "pass material number with leading zeros..
      objecttable        = 'MARA'  
    TABLES
      t_class            = t_class
      t_objectdata       = t_objectdata
    EXCEPTIONS
      no_classification  = 1
      no_classtypes      = 2
      invalid_class_type = 3
      OTHERS             = 4.
  IF sy-subrc = 0.
ENDIF.
BUT IT IS GIVING   NO CLASSIFICATION FOUND