Importing into categories

I am trying to import a few hundred items into the catalog using a csv file. The first few lines of the file are:

product_code,product_description,price_value,parent_category,product_type,product_width,images,options,categories
ASU-W-60601,salad bowl (SHALLOW),8.95,Simplicity - Surf,Dinnerware,14 cm/5.5 in,,White,2
ASU-W-60602,salad bowl ,11.95,Simplicity - Surf,Dinnerware,17 cm/6.7 in,,White,2
ASU-W-60603,salad bowl ,13.95,Simplicity - Surf,Dinnerware,20 cm/7.9 in,,White,2

But the products do not get imported into their parent categories. They are all imported into the default Product Category.
The import does create the 4 product categories, but none of them contain any products.

Please could you let me know what I am doing wrong.

Thanks

Jim

nicolas wrote:

The column product_type can only contain "main" or "variant". You should not set it yourself. The product_width column cannot contain several widths. You can put the width in cm or in inches but not both in the same. Plus, you should use the product_dimension_unit to set the unit you want to use and not have it directly in that field. The column options should contain the product_code of another product (maybe that's the case?). The categories column is where you should put the category of the product. The product_category column enables you to set the parent category of that category. IF you don't have several levels of categories, you should not need it.

Many thanks, Nicolas.