Material determination

Hi Gurus,

I am creating mat determination. In substitution reason ie

path : S&D - Basic function - Mat determination - Def sub reason

In sub reason - I hv taken 0002 ie customer mat & put in outcome column ie "A" means Substitution products are displayed as subitems while creating sales order.

Now when i am creating sales order, for A - product ie suppose old product TAX item catg comes & B - prod ie sustitution product subitem, item catg TAPS for which pricing is zero showing. Instead of Sub. prod, old product ie A product price is showing.

I hv seen both item catg details ie TAX & TAPS. In TAX, billing relevance - A & price X is defined. In TAPS both are nil.

i think it should be opposite. because i deliverying B product for which i will do delivery as well as billing.

Kindly give your inputs.

Thanks

Rakesh