Introducing users that were outside the Fitbit community and registering their steps to the campaign meant a significant development challenge, from a concepting and back-end standpoint. The other major challenge was introducing ways to incentivize participants to sign up (the $1 Million donation carrot from the previous Fitforgood campaign wasn’t available). We significantly expanded the platform, introducing team functionality, which included sign-up, chat and daily challenges with other teams. Users could review their team rankings, as well as their individual rankings in terms of total steps taken.