Web interviews conducted with Survey Solutions contain reasonable default messages suitable for many surveys. But if the default messages are not suitable for a certain purpose, they can be customized in the web survey setup dialog at the Survey Solutions Headquarters:

For every parameter select if you wish to display a built-in default message, or a custom one, and if so, provide your custom (formatted) text of such a message. You can use the formatting toolbar provided in the editor to adjust the font color and font attributes, include numbered and bullet lists, and include hyperlinks.