COPA - Moving Average Prices

Hi,

We have materials with price control 'V' and 'S', both are relating to same material type. While doing billing, there is no error for 'S' materials but we are getting error for 'V' materials like "K/834. No Standard cost estimate could be found for material XXX".

In valuation strategy i assigned the costing key E10 (period indicator 4 - Released standard cost estimate) to that material type. To resolve the error temporarily i assigned another costing key E20 (Sales order cost estimate) for the products for which we got error. We are not running standard cost for raw materials.

Is there any derivation solution to overcome this or shall i need to assign the costing key E20 product wise for all 'V' materials (around 11000 materials)?

Regards

Madhusekhar Gupta G