====1.2. Set an owner to the item==== To define the ownership of an item, use the ‘Preferred vendor’ field under the ‘Purchasing Data’ tab in the ‘Item Master Data’ window. Because in this field only vendor type business partners can be selected, add the Vendor partner.\\ It is not possible to set more than one owner to an item. That is why you must add a new item for each owner even though it is the same item.