The custom Alert app displays an alert dialog only on the page that the app is placed on. It provides a custom logo image upload, title text, subtitle text and a WYSIWYG editor control for an alert body. When a user closes the alert dialog, it will not display for them again until they clear their browser data or close their browser completely and revisit the web page in a new browser session. The custom alert app can be placed on any page and in any content region.