Thanks for the information.

If you need sub categories, you need to enable hierarchy. It’s disabled on your screenshot

Regarding question below.

Please do not hesitate to contact me if you need more information.

Hi,

I would like to mass import more than one main sub category to WooCommerce products with csv and Import WP PRO. 

Using the following data works well. 

Solcelle, Solcellelader

Then I get one main category (solcelle) and a sub category (Solcellelader). But I would also like to add the sub category ¨Solcellepanel¨

Any ideas how I can manage to add one more sub category when mass importing?