Error message on which title is already in product list when uploading csv

[De Kaft]

When uploading a CSV, I only get a message with the number of titles that are already on the product list. With thousands of different products (books) it takes a lot of time to find out which titles are double.

[Andy]

During import at the back office, there is a report of errors and warning signs. They indicate which sell, row or column has a problem and the type of problem. 

So, it is easy to change mistakes in the CVS file.