Login to your local store merchant account at: https://merchants.shoptoit.ca/
Click on 'Business Information' on the left hand menu.
Then click on 'Enhanced Information'.
Scroll down to "Primary categories" and choose the main categories for the products you offer. If you are unsure of which category your products would be best suited in please go to: http://www.shoptoit.ca/shop/ to see all of the categories on Shoptoit.ca.
You can choose multiple categories, but make sure that the BEST category for the majority of your products or services is selected as 'Is Primary' as that is the main one we will use for your ad campaigns.
Scroll to the bottom of the page and click on 'save' to save your changes.