URLs

Create Site URL (and Edit)

Site URL
Enter the URL with the trailing forward slash. Do not use backslashes or special characters. It is also advisable to use hyphens ( - ) rather than underscores ( _ ) for SEO purposes.
Page
Select the appropriate page to assign this URL against. Note: For products, make sure the product page is selected.
Product / Stock Record
Select the appropriate product (searching by SKU or name) to assign this URL against.
Site Category
Select a Category to assign this URL against.
Page Active
Set to "Green" to make this URL action.

List Site URLs

From here you can see either the full list of URLs for the site, or those specific to the current Page, Product or Category you are modifying.