opm financial accounting for sales orders

Dear all,

We have different type of the sales order. At opm level we have accounting entries against sales order like this cost of goods "dr"  and finish product stock "cr". Now I have

created one more order type and want dr account (expense ) that is not cost of goods ,Mean I want to dr the account on the base of sales order type for sales order entry.

Kindly let me know how can I do that.

Thanks