There are two possibilities:
- Use Journeys on all pages of the web application or site.
- Use Journeys only on specific pages.
In the second case you will need to manually add the launcher snippet to each relevant page, in order to enable Journeys only where they are needed.
<!-- here is where the page's HTML content ends -->
var NW_launcher_path = '/launcher/'; <!-- (or the path from Delivery Server option)--> ...