How to identify Order/Quote line item(Product) is part of promotion i.e Receive product or not.Is an

Siebel  Environment

Version : : 8.1.1.7,Asset based Orderding.

either at Order or Quote need to find the line item (Product) is part of Promotion product or not. Is any field avaiable for this or any process prorperty at Dyanmic pricing procedure WF which calcuate at runtime.

or Do we need to follow below steps :

1)Get Promo Product and  Price list

2) Query on Price list items with product Name

3) Get Aggredate discount sequecne name

4) Get Aggregate discout name based on Sequence name

5) and get available products i.e Receive products in discount details.