BY Product

Hi All..

Cleint produces a product by using number of raw materials. Along with this product also gets a By-Product with same quantity as Main Product.

Cleint also sells this By-Product as a finished goods.

How to map this in SAP PP REM..??

BOM Configrtn to accomodate By-Product..??

Can u please brief me abt Co-Product & By-Product.??

waiting for reply,

With regards,

LN