you can get the Internal Characteristic from AUSP as below,
SELECT SINGLE ATINN
FROM AUSP INTO ln_atinn
WHERE OBJEK = '39608'. "Material Number
Below FM will give only the characteristic name for the fetched Internal characteristic (ln_atinn) from above query,
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
INPUT = ln_atinn
OUTPUT = ln_atnam. "Characteristic Name
CABN table would be helpful, If you are looking for detailed characteristic values.
Thank you for your help .
Here it is strange that , When I browse MM03 I can see the characteristic (001, MARA), but when I browse AUSP with objek = material number I see nothing ? and more the FM that you give me do not find any characteristics of any material .