Fitbit does not show your steps in the 7-day total and steps uploaded from any third party does not counting in any challenges. To see any activities we uploaded, use Fitbit’s Activity Log. To participate in Challenges, you must use Fitbit hardware.
For Fitbit, we get immediately notified whenever you sync or add a new activity on their end, and thus, the sync button usually does not find anything. If you are missing something and you are a Pro user, you can use our Historic Sync feature or contact us.
Fitbit only generates proper TCX files for activities with GPS data, and as such, we do not have the rich data required to be useful at services that require detailed activity data.
Fitbit allows us to either upload steps or distance, and infers the other based on the data in your account. To control whether we upload steps or distance, change the “Prefer steps over distance” setting under Profile.