Material Determination

Hello,

I have Material A and Material B extended to a plant. I want to swap Material A with Material B, if stocks are not available for A and still have the price of Material A. Also, if any discounts are applicable for A, the same should be made applicable to B as well. Do note I also have my own price and discount values for Material B when I am selling it independently.

Regards

Nadarajah Pratheb