Hi Linda, once a campaign is setup the settings for the URL cannot be modified. You will only be able to set how to track a domain during the setup process. A new campaign would have to be created if there is a change to the domain.
If you enter a root domain, our tool will track data for any pages at the root domain level including all sub-domains.
If you enter a root domain, sub-domain, or sub-folder and check the advanced box to "exclude all sub-domains" this means we will only track pages within the URL as entered. This means if you entered a root-domain and you are now ranking for the www-version of the site, all of your rankings will not be found in the top 50 search results because we are only looking to track the root-domain version.
For Patrick the campaign is setup as a catch-all which is good so there will not be any issues pulling data. There is common confusion on how we collect rankings data. When a campaign is setup and keywords are entered. Our tool will search those keywords on Google/Bing/Yahoo, etc and will look for results that match the configured domain.
Hope this helps!
If your keyword is ranking for a page on your sub-domain or root domain in the top 50 results, then that exact URL will be listed next to the keyword.