Short answer: most of ‘em. Here is a brief description of the required fields, what they mean, and why it is important.
|Apple Podcasts Category
|Get as close as you can with the vaguely-worded iTunes categories to your series's subject matter. It’s in your best interest for discoverability.
|If you know your series will consistently be explicit, mark it as such. You can always override this for each individual episode. Note that if you have explicit content, and it isn’t marked - Apple Podcasts can yank your podcast out of their app. Do not taunt the dragon in its lair.
Determines how your series episodes are ordered.
Episodic presents the content with the most recently published content first.
Whereas Serial presents your content in a linear format from first episode to last. Recommended for shows you'd like listeners to approach in a certain order.
|A website URL is required by iTunes. We know most producers have them but in case you don’t, we’re here to help— Dovetail generates a URL for you if you don’t already have a homepage. However, having your own homepage allows you to post extras that may not quite fit in your episode and expands your reach and discoverability.
|Feed Owner Name
Feed Owner Email
|Contact Information for Podcast Owner. Note that the email is public, so choose carefully.
|If your series already exists - this would be the link people follow to subscribe to it. If you are launching a new series you won't have one yet.
|Copyright notice for the content in the series. This information typically includes the name of the podcast (or producing company) and the year.
|Apple Podcasts uses this for discovery purposes. It should reflect the language predominantly used in your series.