If you have just moved your show to Acast—congrats! You will have imported your show to Acast and will now have a new RSS feed URL.
All ordinary podcast apps (like iTunes, Overcast, Pocket Casts, Castbox etc) will automatically update your feed when you redirect from your previous podcast host. However, some non-traditional apps, specifically Stitcher, may require that you send them a note about this change.
Update your feed on Stitcher
To update your feed on Stitcher, log into the Stitcher Partner Portal to update your RSS feed to your new Acast RSS feed URL, or send the new feed URL to firstname.lastname@example.org