Diagnosis
You have specified the EAN prefix in an invalid format.

Procedure
You must enter 2 or 3 digits for an EAN prefix. This means, forexample, for standard EAN-13s that you must specify the 13th and 12thor the 13th, 12th, and 11th digits in the EAN. EANs are read from rightto left.
Note
You enter UPC code prefixes with leading zeros.