Login to Formfacade > click on the form to open it > Edit page will be displayed > In the Formfacade Edit page, click on the form title to select it > click on the @ icon (see attached screenshot) and select the preferred field from the list > entryId for the page url field will be added > copy this ${entry###} > click on the submit button settings and use the ${entry###} id in the redirect on submit option. You can then submit a response and test the form.