I have set up a custom post type of "Products"
I have also set up a Page called "Products" - which shows an introduction to products etc
However, I have also added a page called Portfolio and set it to the parent of the Products page, which will display all post types of "product"
However, because the url is products/portfolio - I am guessing WP is thinking that this must be an existing product rather than the page that has been set up?
Will also be adding other pages such as products/promotions etc
Any help would be much appreciated