How to specify one default category during products import?
If you do not have column with Category Path for products in your import file, you can setup default category (for example: what's new of new products) for all products using Expression field.
You can setup it at "Assign .CSV columns to Database" step in Import Wizard.
Just specify the category name in quotes and it will be used for all products imported from the file.
*in our case we'll import into category with name "example" 🙂
Please leave comments if you need more details.