First, we apologize for the delay here. We use HumanAPI to intake Garmin and we also use FitbitAPI to intake Fitbit data. While the connection is normally stable and efficient, using a third-party vendor can often come with inevitable delays.
If only part of your data is making its way to your Sonic Boom account, or if you notice a full day's worth of data is missing, please contact Member Success for further assistance. As long as you're frequently offloading data, we should be able to recover any missing information.