Double classification at level 4

 
 
Error:
Double classification at level 4
 
Explanation:
Article groups in EZ-base are classified in a logical and standard way. The own classification tree always consists of 4 levels. Each classification tree must be unique in order to be able to classify the articles. One or more classification trees occur more than once in this error message.
 
Solution:
Remove or change the duplicate classification trees from/in the import file for the own classification.