In this lesson we enhance the Mileage Tracker application. One enhancement in this lesson that we make is to relate a trip to a Project. We do this as a Lookup field so as to not make the Project field required on a Trip.
We also add functionality to allow for entering mileage for other people. To do this, we add a Lookup field to Contact and then add a Lookup filter.
We also introduce Record Types on the Trip object to allow for Trip entries for Self or Others. We limit the functionality of entering Trips for others to only be available to Admins, defaulting Trips to Self for all other users.