The export log shows a message like this:
Skipping product: 1/0 has no EAN13
In most cases, unless exempted, EAN code is required to export the marketplaces, visit ticket Prestashop, EAN codes and marketplaces (fr) on our blog about it.
The field EAN code is probably missing for your product, you must complete, the information as:
You must also fill a EAN code by combination if you use the combinations.
See the page validate your catalog structure to know more about this subject.
