Every podcast has its own unique RSS Feed URL that contains all the information about your podcast, such as artwork, metadata, episodes and so on. You can find your podcast's RSS Feed URL on your Podcast's page, which is located in SHOW | PODCAST > PODCAST HOSTING > My Podcast(s).
To be able to get listed in any podcast directory or on any streaming platform, you need to submit the RSS Feed URL once you have at least one published episode. You can read more about submitting your podcast to directories HERE.
Podcast directories read the RSS Feed URL and display its content on their platforms. Every platform reads the RSS Feed URL at different times of the day. Some of them every 5 minutes, some of them only once a day and others even less frequently. So any changes you make (posting new episodes, setting changes, etc.) will be displayed on them after they have updated their sites from the RSS Feed URL we provide.
If you are a radio syndication client, you can find your radio show's RSS Feed URL on your Radio Show's page, which is located in SHOW | PODCAST > RADIO SYNDICATION > My Show(s).