Can material determination and Free good determination co-exist

Hi Gurus, I understand the Material Determination to be substitution of a new material for the old one for any possible reasons such as sales Campaign, Non availability etc. Could anyone one explain the concept whether material determination and Free good determination can co-exist in a sales order? How to substitute by material determination procedure for a free good in a sales order?

Yes, material determination and free goods can both be done in a sales order. But the free goods determination will be done only for the material that would be substituted in the order and not for the material for which you you substitute.

Ex: If for a material say j-10 you are substituting j-11 in the sales order, you can maintain free goods for j-11.

pgraj