HI,
where ever are using the 0MATERIAL it will effect that flows only in BW side.
then write the user exit code in ECC side populate the data for specific filed.
check the data in RSA3 then replicate the DS to BW side.
then create the info object at BW side just map the data source to 0material target.
then load the data test it for specific field.
Thanks,
Phani.