Own article GTIN {0} is not unique; it is already used (in the existing assortment) at article {1}.
Explanation:
The own GTIN is not unique. The import file contains an article with a GTIN, which already appears with another article in the existing assortment. This other article does NOT appear in the import file, but it does appear in the EZ-base data.
Solution:
Each article must have a unique GTIN. Check the GTIN number mentioned and see to which article the number belongs. Correct this number in the import file or in the database using EZ-catalog.
