heartRateZones not showing minutes in the zone

[FitVaultWeld]

When calling https://api.fitbit.com/1/user/-/activities/heart/date/today/1d.json

I am getting the daily heartrate summary back but its not showing calories or minutes in the zones? I am not sure what I am doing incorrectly as just knowing the max and min heartrates does not help? 

"activities-heart":[   

        {

            "dateTime":"2020-12-15",

            "value":

                {

                    "customHeartRateZones":[],

                    "heartRateZones":[

                        {

                            "max":85,

                            "min":30,

                            "name":"Out of Range"

                        },

                        {

                            "max":119,

                            "min":85,

                            "name":"Fat Burn"

                        }

                        ,{

                            "max":145,

                            "min":119,

                            "name":"Cardio"

                        },

                        {

                            "max":220,

                            "min":145,

                            "name":"Peak"

                        }

                        ]

                }

        },

[Gordon-C]

Hi @FitVaultWeld 

The endpoint you're calling is requesting the heart rate data for today (2021-01-14), however the output you provided shows the date (2020-12-15).   Would you please confirm the endpoint and data output?  Typically the output you see occurs if there is no heart rate data available.   I would recommend confirming if heart rate data exists on 2020-12-15.

[FitVaultWeld]

Hi @Gordon-C 

Thank you for the response, apologies for sending the incorrect dates data this was just an example of what we are receiving for all days for the user. From what I understand from your response is that if the user does not have a device that has HR or has no HR data then that is the default response i.e. an object defining the zones reference data in it each time? 

[Gordon-C · Accepted solution]

That is correct.  If the user does not have any heart rate data due to wearing a device that doesn't support HR or they stopped wearing their device, the output you received will be returned.