You have to decide if you want a message to appear on the same page as where the user chooses Submt, or the user is directed to a new page.
Confirmation Message
Confirmation page set up
The confirmation page is what the user sees after they have chosen the “submit” button. The confirmation page is a great place to thank the viewer for taking the time to submit the form, when you will reply, or any other marketing that is appropriate at this time. We will work with you to create content for this page and you can edit it at any time.