Donate button feature will allow you to add a custom button inside your public podcast website. This button will allow you to add the page of your choice to redirect your users to an external donation site.

In order to configure your Donate button you need to have an active Donate system website page. 

There are a lot of service, the simplest ones are Gofundme, Paypal or Patreon. Choose the one that best suits your needs. 

When you got your custom URL you will be able to add the URL inside podcast dashboard.

Then click the "Setting" tab and click the "Activate" button inside the "Donations and funding" section.

Then add your custom donation website URL and click the "Enable donation" button