If you don't see the activities that are recorded with the Fitbit device, this can be caused by the following reasons:
1. The activity record in the device must be recorded by using "Exercise" functionality. We do not receive steps or kilometres that you have done using Fitbit device daily. We receive only exercise records.
2. The recording of GPS data (location) must be switched on when you are performing an exercise record. Some Fitbit devices are not supporting built-in GPS tracking. In this case the Fitbit device must be paired with your phone and must use phone GPS data. If phone data is used, both devices must be with you while you are doing an exercise recording.
3. After you have finished your exercise, it must be saved on your Fitbit device and Fitbit device must be synchronised with your Fitbit app on phone. This is how your exercise record is stored in your Fitbit account. All your synchronised exercises you can check here :
Make sure that you see your exercise data and route under "Activity History".