Since the CSV format is not standardized, you may come across this message when importing:
Stats :
New products: 0
Modified products: 0
Ignored lines: 0
Some products still remain to be processed in the working file. It can be errors to correct or lines that were ignored on purpose. Once you have carried out potential corrections, please re-click on the Import icon to pursue the importation process.
Below are several points to check in your CSV file before importing:
Table;99.00;"description
on several lines";ref001
Chairs;59.00;"description
on several lines";ref002
"Table";99.00;"ref003;19.6
=> a double quote is missing after ref003