Adding a Footer to Flow requests can help your Flow recipients know what the Flow is for or how to contact your business should they have any questions or concerns about opening or completing the Flow.
When a Flow recipient opens the unique URL for the Flow, they see a PIN Verification page. When the Flow request includes a Footer then it will appear on that PIN Verification page under the PIN input field.
Adding a Footer for Flow Templates
Navigate to Configure > Flow Components > Footer. Click the + New Footer Message button. Type in the footer message that should be displayed on the Flow's PIN Verification page when a recipient first clicks and loads the unique URL for the Flow request.
When you're done, click the Save Footer Message button.