If you're moving to Omny Studio from another service and your podcast is already listed on Spotify prior to the move, you may need to contact Omny Studio support (firstname.lastname@example.org) to migrate your feed.
Please email your Spotify URI which you can find here:
Along with your new Omny RSS feed for each podcast. This help doc shows you where to find your RSS feed.
Omny will get in touch with Spotify so that they can manually update your listing.