System not creating B2B PR when creating SO in other than Primary UOM

Summary:

We have a Back to back setup in our project. While creating SO in primary UOM of the item system is working perfectly fine and creating B2B PR, but while creating SO other than primary UOM system is not creating B2B PR and showing below error
 "A value is must for the price attribute. For Master items, you must provide a price when there's no list price defined for the items in product information management or a different UOM other than the primary UOM of the item is provided" 

P.S. - In our project prices are governed through CPQ.