Used for: adding UTM parameters to track the performance of your products in your Google Analytics.
Used in: "THEN"-statements and "ELSE"-Statements.
Channable also has a rule to easily add UTM parameters to your product links. This way you can add the UTM parameters of your choice, giving you the option to filter on these parameters in the Google Analytics account of your webshop.
Which values you choose to add as parameters to your URL is up to you, but below you can see an example of how to set up your parameters (this tells you that the visitors came from a Google Shopping feed created in Channable).
If you save this rule, your URLs should look something like this screenshot: