You only need to create 1 campaign for the website.
Roger bot will crawl all your product pages and report on any technical issues you have with the pages.
When checking for ranks, SEOMOZ checks the pages that are ranking as well as your domain so you dont have to assign different keywords for different pages in your campaign settings.
Dont worry about creating multiple campaigns, just load your website URL, insert the keywords for all your product pages, and wait for a report at the end of the week.
Greg