Once you've imported your podcast to Omny Studio, you can easily migrate to Omny Studio without losing your existing subscribers. All you need to do is tell Apple Podcasts and the other podcast directories and apps to pull from your new RSS feeds. This is done by applying a re-direct from your old feed to your new feed.
Migrating from Art 19
Once your import is complete and you've created a duplicate of your podcast. You'll need to contact Art 19 support staff to request a redirect.
Here's a template you can use to make this request:
I'm moving my podcast to a new host provider and kindly request that you apply a redirect for the following show ASAP
Can you please apply a 301 permanent redirect from[INSERT Art 19 RSS] to [INSERT NEW OMNY STUDIO RSS]
We will need this redirect kept in place for a minimum of 4 weeks.
Please let me know if you need any more information and an advised timeline would be greatly appreciated as well.
Thanks in advance.
You can find your Omny RSS feed using this guide: http://help.omnystudio.com/frequently-asked-questions/where-is-my-rss-feed