This guide details how to set up optimal universal Google Analytics tracking configurations for any ad sources you work with that aren't directly integrated with Polar Analytics. You can see more details on why we recommend setting up tracking parameters for Polar Attribution in this article.
For any channels not directly integrated with Polar, you can use the universal tracking parameters (which you use on Google Analytics): utm_source, utm_campaign, and utm_medium.
You can use the traditional GA campaign URL builder located here to assist you as you configure these parameters.