This means the campaign parameters added to your destination URLs. These parameters can be tracked when you receive traffic through these URLs. Parameters are set after the “?” character in the URL.
Note: Adding parameters to your destination URLs can help you to track different campaigns and ad channels.
Example: This is an example for an URL with campaign parameters: https://randomsite.com?source=facebook&campaign=springsale. In our example, the parameters tell the owner of randomsite.com that the visitor will come from Facebook in the Spring Sale campaign if they click on this URL.