POS Interface - Outbound: EAN/UPC Reference Object 
Definition
This object is used to transfer additional EAN/UPCs belonging to the main EAN/UPC of an article, together with all the assigned EAN/UPC references.
IDoc type: WP_EAN01
The object is not time-dependent.
Structure
The EAN/UPC references are separated from the article master so that the cash register does not have to carry a full master record for every EAN/UPC.
Integration
The EAN/UPC references of an article are only transferred to the POS system if the article it relates to meets the conditions for transfer (see
POS Interface - Outbound: Article Object) and at least one additional EAN/UPC exists for the main EAN/UPC of the article.