Different units of measure can be used when handling an article. You can create a European
Article Number (EAN) for each unit of measure that you define in your system for an article
(order unit, delivery unit). The EAN clearly identifies an article in a specific unit of measure. It is
also possible to assign several EANs to one unit of measure. If you do this, one EAN needs to be
flagged as the main EAN, for example, several vendors for one article have