The code snippets can be installed by you or your webdeveloper and / or ATS vendor. VONQ is not needed in this process unless you request us to help you. More information on the installation of these snippets can be found here.
The validation of the snippets is something you can do with the help of Snowplow Inspector - a Chrome Extension for Debugging Tracker requests. But is also something that VONQ can do for you.
After validation VONQ needs to enable Recruitment Analytics for you before you will be able to see Recruitment Analytics in your account.