It's not a good idea to mix your traffic sources when it comes to tracking performance within Google Analytics. By default, Google Analytics combines organic search and organic/free shopping listing traffic into one category: Organic. Ideally, you want to keep things separate so that you how the traffic that is coming from Google shopping free listing is performing (compared to other sources such as organic or paid shopping campaigns). It's a simple process and, in this video, I have demonstrated what steps you need to go through to get this thing done. Take a watch.