Hello, I meticulously followed your guide on the product attributes.
Added two different attributes to my product type, then added the products and then made the product display accordingly, everything like it is indicated in the user guide.
Now, when I want to make the product display that should combine the different sizes (I have 8 different sizes), I can only add two SKU's, although I put the quantity of choices to 10 in the content type field " product reference".