Assigning Additional EANs to a Unit of Measure 

The information contained in this info object is relevant to the material master for industry and to the article master for retail. Retail customers are requested to substitute article for material.

If the EAN has the EAN category for UPC-E (Universal Product Codes displayed in a contracted form), you must also specify the EAN category, but only if the EAN category for normal UPCs is also used in your system. For more information, see the documentation for the activity
Define Attributes of EANs/UPCs in Customizing for the Material Master.
For each unit of measure, you must flag one EAN as the main EAN. When you exit the Additional EANs screen, this EAN is copied to the Units of Measure screen and, in the retail system, also to the Basic Data screen. In the industry system, it is copied to the Basic Data screen only if it is the EAN for the base unit of measure.

If you overwrite the EAN on the Units of Measure screen or on the Basic Data screen by entering another EAN, the EAN you enter is copied to the Additional EANs screen as the main EAN.
If, on the Units of Measure screen, you delete the EAN for a unit of measure for which additional EANs exist, a dialog box appears in which you must designate one of the additional EANs as the main EAN.