Your show notes are sent to your RSS feed and seen across all platforms your podcast appears. It's important to think of this section as the blog post of your episode. The better your show notes; the better chance you have of being discovered by new listeners.
Dig deeper with this blog post: Podcast SEO And Why It’s Important
How do you enter your show notes?
The most common way Podcave users do it is in the planning tab. You can find this when you create a new episode under Planning Tools.
The other way to do it is when editing the details of your episode. First you click on EDIT DETAILS
Then you'll see your show notes appear. Don't forget to save your changes!