Step 1: Go To Your Form or Questionnaire
Click on Forms in the vertical menu or the horizontal menu.
Go to the Forms sub-tab next to the My Forms header, then click on the form that you want to edit the confirmation message for.
Step 2: Open The Settings
In the Form Editor, click on the Settings gear icon in the upper right corner.
From the Edit Settings panel, click on the blue Confirmation Message text.
Step 3: Edit The Confirmation Message and Save
From the Confirmation Message box:
To display a message after the form is submitted, click on the Show Message radio button. Type in your message in the Enter a Message field.
To redirect to a website after the form is submitted, click on the Redirect to Website radio button. Type in the url in the Enter a URL field.
Click on the red Save button to save your changes.