my fitness pal not recording calories burned via steps in fit bit

​​​​If MFP and Fitbit are synced but you are not seeing Fitbit steps, on the MFP mobile app go to Menu > Steps, or on the web version go to APPS > Steps, and make sure Fitbit Tracker is selected as the Step Source.

If you are seeing steps but no "exercise" Calories, perhaps you have not yet taken enough steps (moved enough) to earn more Calories than you get from your MFP self-estimated Activity Level. I do not start getting a positive Fitbit Calorie Adjustment until I have exceeded 2500 steps per day when set to MFP Sedentary Activity Level.

You will start getting a positive Fitbit Calorie Adjustment when the Fitbit estimate has exceeded the estimated amount of Calories burned based on your MFP Activity Setting and weight loss rate. If you are set at Sedentary (Not Very Active), you should start seeing a positive adjustment for the whole day above 2500 to 3000 steps. If you are set at Lightly Active, you may not get a positive adjustment until you reach about 5000 steps. Higher MFP Activity Levels require higher number of steps before the adjustment becomes positive.

I have negative adjustments enabled, so when I get up and have not done many steps, my adjustment is negative. As I move around, the adjustment increases throughout the day and usually turns positive.

I would recommend reading through the first three posts in this thread on the MFP Fitbit Users group...

http://community.myfitnesspal.com/en/discussion/10098937/faq-syncing-logging-food-exercise-calorie-adjustments-activity-levels-accuracy

http://community.myfitnesspal.com/en/group/1290-fitbit-users

So, I'm here due to the same problem, only when I try to disconnect the fitbit from MFP, it doesn't do anything (just goes back to the fitbit "page". And basically, it hasn't recorded my steps for a long time now. Any suggestions there?