Device id is not unique for Mobile Track

[SteveWT]

We built our system under the assumption that device ids are unique in fitbit's system. We are now having an issue where a user cannot connect because device id already exists. Both users are using Mobile Track. Can a fitbit party confirm that device ids are unique or not? Thank you. 

[SteveWT]

Can anyone provide us with some information on how device ids are generated, we're still having issues with device ids not always being unique. Device ids are used as a lookup in our system and in some cases two fitbit devices have the same device id in the fitbit system.  Thank you 

[stuartma]

hi @SteveWT, do you mean ID's coming form the user/-/devices.json end point?

My experience is they are unique to a user using the device, so if you give a device with soemone else they will get a new device id even though the device is technically the same.

Is that what you mean? or are you looking at a different ID?

[PeterAM]

Device IDs are unique, even for MobileTrack.