Just got off the phone with Sage and they tell me there is no way to delete an item out of the system if it has any history. After speaking with an inventory data expert they tell me the only way to completely remove an item from any version of MAS after version 4.4, is to manually remove it from every table that begins with ""Item_""
I guess my bet option is to merge several hundred items together, and then manually delete it. Anyone have any other work-arounds?