Sales Discount

Dear,

i use JDE 9.1.5 i have following scenario:

1. i enter sales order with item unit price 1000 and i enter 10% in trade discount in header payment and freight tab.

2.the unit price in detail become 900 because of discount.

3.when i run the sale update the following record have: Dr COGS 500/Cr Inventory 500   and DR Trade Receivable 900/CR revenue 900 which i dont need this entry.

my needed entry is:

DR trade receivable 900

DR Discount account 100

CR revenue 1000

how i can setup this process ?

and please if you have any document for discount in sales and cash sales discount can you post here.