Manually Creating a Product Cost Estimate for a Sales Order Item 
Prerequisites
You have entered the costing method product costing in Customizing for Product Cost by Sales Order in the requirements class. If you haven’t entered a default costing method, you can choose the costing method directly in the sales order.
You have specified in the requirements class that costing should not be initiated automatically when the sales order is saved (Costing indicator) (
see also : Product Cost Estimate for Sales Order Item), or you want to initiate costing manually for this particular sales order item, for example so that you can
modify it with unit costing.
Procedure
The screen Change Sales Order: Initial Screen appears.
The following dialog boxes may appear:
Enter the costing variant for sales order costing (such as PPC4 ).
Choose Enter.
Here you can:
Choose Enter.
Result
The system costs the sales order item.
The screen Sales Order Costing: Costing Data for Material appears.
You see the costing results according to cost component views (such as cost of goods sold, cost of goods manufactured).
Now proceed as follows:
To access other reports, choose Goto
® Other Report.To access other reports, choose Goto
® Other Report.The dialog box Update Parameters may appear. Specify whether an itemization is to be saved in addition to the cost component split.
If you are using a valuated sales order stock and the cost estimate has the status MARKED, the value calculated in the cost estimate is written to the stock segment of the sales order stock as the standard price if the customer exit material valuation sales order materials was not used and no goods receipt has been made.

After the first goods receipt, the standard price of materials in the sales order or project inventory can only be changed manually. If new cost estimates are created after the first goods receipt, you might not be able to tell how the price used for valuation was calculated.
If the standard price was calculated in a product cost estimate for the sales order item, you should save an itemization if:
You can view the cost estimate in the sales order and in Product Cost Controlling Information System.
See also:
For information on the information system, see the document Product Cost Controlling Information System.