You can let your listeners support your program by linking to your show’s payment or donation page.
If your podcast accepts memberships, subscriptions or donations, you can specify a URL for a web page that accepts payments from your listeners. Omny Studio automatically appends this link to the show notes of every episode.

In Omny Studio, go to your program.
Select Program settings, then select Details.
Expand Social links.
In Support the show link, enter the URL for your payment or donation page.
Optional: In Support the show label, add a label to display in the clip description.
Select Save changes.