Correct CountryOfOrigin display in review dispatch list(material backflush) for the respective items

I have chosen wrong country of origin deliberately in review dispatch list while executing a work order. I would want to know why there is no relevant message getting shown when the wrong country of origin is getting selected and most importantly why there is no LOV with the actual country of origin attached to the item in review dispatch list? Why does a person/production operator have to go to inventory management or be dependant on the warehouse guy to see/get the COO and come back to work execution and do the dispatch. The production operator should have