With purchase orders in foreign currency, the postings at goods receipt and invoice receipt are updated both in the order currency and in local currency. The posting amounts in each currency are determined from the PO history independently of each other.

You can also use the Product Cost Controlling (CO-PC) component in your company to manage stocks of materials in several currencies in parallel. This allows you to valuate stocks in parallel currencies based on the actual exchange rates of the transactions causing the change in stock value.