The RedHen Registration module provides integration with the Entity Registration module, allowing you to track registration histories in RedHen.
User Interface:redhen/contact/%/registrations
When enabled, the RedHen Registration module adds an additional tab to each RedHen Contact's page titled "Registrations". This page displays an auto-populated chart of Registrations for this Contact. There are two possibilities for how this chart is populated:
If the Contact is connected to a Drupal user, that User's registrations will be listed on this page.
If the Contact is not connected to a Drupal User, the Contact's primary email address is matched against the email addresses attached to anonymous registrations to generate the list.
Note that this means any Contact that is connected to a Drupal User will list only the registrations for that user, not anonymous registrations using the Contact's (or User's) email address. It also means that if you have a Drupal User and a RedHen Contact with the same email address, but not linked, then registrations for that Drupal User will not show up on the RedHen Contact page, because non-linked Contacts only display data from anonymous registrations. In other words, if you are allowing authenticated registrations on your site, you probably want to use the Drupal User Connection features described here.
There are no configuration options for the RedHen Registration module, it is simply enabled (on) or disabled (off). If you want to add Engagement Scores based on Registrations, this can be done through the Rules interface whether you have enabled RedHen Registration or not.