Below are the following reasons a channel subscriber does not have webinar engagement:
- User was shown a channel survey (separate from the registration form) that they did not complete.
- User was asked to complete more registration form data and they did not complete this.
- The content could not start playing (i.e. flash was blocked).
- The user left the page before the content started playing.
Keep in mind you can still look via the embedded URL column to see what webinar they attempted to click/view.