Fitbit charge not syncing stationary bike work out

[Christine2013]

I have a flex bike and use the echelon app. The Fitbit app is synced with app and it only recorded 14 mins and 583 steps. I worked out longer and it didn't record my whole workout. How do I fix this so it records my entire workout? Even if I push the button on side of watch it doesn't go into workout mode when doing other workouts. It just says turning off and on notifications. Thank you for your help. 

[WendyB · Accepted solution]

Biking is not step based so it will never be accurate. I just manually  log what my bike tells me

Your steps are counted altho not a lot being a bike.

[Christine2013]

Thank you!