Generally all raw materials (ROH), spare parts (ERSA), traded goods (HAWA) etc. are assigned as moving average price (MAP) because of the accounting practice of accurately valuating the inventory of such materials. These materials are subject to the purchase price fluctuations on a regular basis.
Company generally uses moving average on purchased materials with small cost fluctuations. It is most appropriate when the item is easily obtainable. The impact on margins are minimized which reduces the need for variance analysis. Furthermore, the administrative effort is low as there are no cost estimates to maintain. The cost reflects variances, which are closer to actual costs.
The semi-finished goods (HALB) and finished products (FERT) are valuated with standard price because of the product costing angle. If these were to be MAP controlled, then finished/semi-finished product valuation would fluctuate due to data entry errors during back flushing of material and labor, production inefficiencies (higher cost) or efficiencies (lower cost). This is not a standard accounting and costing practice.
Hope this will help you.
Cheers,
Parag Mahajan
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