If I missed a day, can I go back to the day and enter data? 19 January 2020 23:01 Yes, you can update trackers for up to one week in the past by going to 'Track', selecting the desired date and tracker to enter the data. Related articles What does automatic tracking mean? If I join a Challenge will it automatically update with my latest step numbers? How many green days do I need to improve my RealAge?