Delivery cost to stock account

Hi all ;

I have a problem in belowed scenerio ;

1-  I create a PO for a stock material with confirmation inbound delivery.

2-  I create a inbound delivery.

3-  I create a shipment document.

4- I create a shipment cost document.

5- Post good receipt from inbound delivery.

When i check account document of good receipt , i can not found shipment cost on stock account.

How can post shipment costs to stock account ?

Regards.

M.Ozgur Unal