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# Why does my Fitbit data look wrong or barely match the Fitbit app?

The most common cause is that a different Fitbit account was connected than the one holding the user's data.

The most common cause is that a different Fitbit account was connected than the one holding the user's data. Fitbit lets people sign in with Google, so during the connection flow it is easy to authorise the wrong Google or Fitbit account (for example a near-empty one), which then syncs little or mismatched data.

**The usual sign is calories with zero steps.** When no tracker is syncing to the connected account, Fitbit still returns a baseline calorie estimate, so daily payloads show zero steps, no workouts and often the same calorie figure every day. That happens when the wrong account was connected, or when the user's tracker has stopped syncing to Fitbit.

First check the connected account:

* Have the user open the Fitbit app and check the tracker's last sync time.
* Have the user disconnect Fitbit and reconnect, taking care to sign in with the exact Fitbit or Google account that holds their data.
* Confirm the email on the connected Fitbit account matches the one they use in the Fitbit app.

Reconnecting issues a new `user_id`, so match the user on your `reference_id`.

If the correct account is connected and the numbers still look off, contact support with the user\_id and an example value so we can investigate.