Pricing UOM automatically selection in Sales Order

Hi,

We have defined the item in the dual UOM, like primary UOM as EACH and secondary as LITRE.

And the pricing is fixed in the price-list to secondary UOM as LITRE.

While selecting this item system automatically through the note message as could not find a price list in ordered UOM. In every item we need to select the ordered UOM manually.

If any option available to set the ordered UOM in item master or any where, if we assign that should be defaulted at the time of order booking.

If any clarifications required review the enclosed screen shots.