Personal Mode App - Missing Intraday Data Despite 200 Status Code

[giovanono]

Hi Fitbit Community,

I'm developing a personal mode application and I'm having trouble accessing intraday data. Here's my situation:

1. Authentication Setup:
- Using personal mode authentication
- Successfully obtained access and refresh tokens
- Using the same Fitbit account that registered the client application
- Token has the HEARTRATE=READ scope

2. API Request Details:
- Endpoint: https://api.fitbit.com/1/user/-/activities/heart/date/{date}/{date}/1min.json
- Headers: Authorization: Bearer {access_token}
- Status Code: 200 (success)
- Detail Level: 1min

3. Current Response:
```json
{
"activities-heart": [
{
"value": {
"customHeartRateZones": [],
"heartRateZones": [
{
"caloriesOut": 1851.50136,
"max": 110,
"min": 30,
"minutes": 1434,
"name": "Out of Range"
},
{
"caloriesOut": 25.817000000000004,
"max": 131,
"min": 110,
"minutes": 6,
"name": "Fat Burn"
},
{
"caloriesOut": 0,
"max": 158,
"min": 131,
"minutes": 0,
"name": "Cardio"
},
{
"caloriesOut": 0,
"max": 220,
"min": 158,
"minutes": 0,
"name": "Peak"
}
],
"restingHeartRate": 67
},
"dateTime": "(today, not permitted format on the post idk why)"
}
]
}
```

4. Issue:
- The response includes summary data (heart rate zones, resting heart rate)
- Missing the expected "activities-heart-intraday" section with minute-by-minute data
- No error messages or warnings in the response

5. What I've tried:
- Verified token scopes using OAuth introspection endpoint
- Tried alternative endpoint format: /1/user/-/activities/heart/date/{date}/1d/1min.json
- Confirmed the device is synced and has heart rate data
- Checked that the date has heart rate data in the Fitbit app

Questions:
1. Is there a specific permission or setting I need to enable for intraday data access in personal mode?
2. Are there any additional scopes required beyond HEARTRATE=READ?
3. Could this be related to the device type or Fitbit account type?
4. Is there a way to verify if my account has access to intraday data?

Any help or guidance would be greatly appreciated. Thank you!

[giovanono]

Here i ment:
1. Authentication Setup:
- Using personal mode authentication
- Successfully obtained access and refresh tokens
- **The email address I used to create the personal mode application is the same one I'm using to authenticate and obtain the tokens for intraday data collection**
- Token has the HEARTRATE=READ scope

[GordonFitbit]

Hi @giovanono 

I have test your scenario, and I correctly receive the intraday data.   I'm going to create a support ticket through issue tracker so I can collect some more information from you to troubleshoot.

Gordon