How do I fix the tracking failure “The site does not exist.”
Cloud On-Premise
You see a failed tracking request with this error message when an invalid idSite is configured as part of your tracking code. For example, in the default JavaScript tracking code the idSite is configured like this:
_paq.push(['setSiteId', '1']);
When you get this error, make sure your tracking code includes this line (or for example tracker.setSiteId(idSite) if you configure the tracker manually).
Check the configured ID actually exists by going to Administration > Websites.
Maybe the site has been deleted, or never existed in the first place and setting the correct ID will resolve the problem.