Unit cost in purchase order calculated as per purchase UoM only

Hi,

The items in our system are setup to have separate primary UoM and purchasing UoM. System constants is setup to use primary UoM to retrieve the purchase cost. Item cost is setup to pick from Item Supplier price catalog i.e. P41061 (where the price is set using primary UoM). But when the order is created, unit cost is always computed as per purchasing UoM and not transaction UoM.

For e.g.

Primary UoM = KG

Purchase UoM = EA

1 KG = 10 EA

P41061 defined as 10$ per KG. But when order is created with transaction UoM 'KG' i.e. 1 KG, unit cost is displayed as '1$' instead of '10$'. No matter what transaction UoM is used for the order, unit cost is always calculated and displayed using purchase UoM. Extended cost is calculated correctly though i.e. '10$'.