Column '{0}' is a legacy name for column '{1}'. Both columns may not occur in 1 import file.
Explanation:
Due to the continuous development of EZ-base, there are column names for the article import file that have been replaced by other column names and are therefore no longer used.
When in the import file these "old" names: legacy names and the substitute names are used simultaneously, the above mentioned message is given.
Solution:
Remove the columns with a legacy name from the import file.