Just to know what is UUID 
Because we have:
Dongle ID or Unit ID: it is the number we have when we buy autopi, and we need it to register the dongle by email to autopi team.
ID: it is another ID we can found in the credentials, we use to request data from the cloud for example
UUID: I don’t know, still not same as Unit ID ? or it is same thing ? 
Oh oh, I know this one. UUID is your device Uniqe Unit ID marked on the unit itself togheter with a barcode scanner, its Serial number so to speak
Side note;
This is generated by software, that meaning if you were to re-install (re-flash) your Auto PI you will get a NEW UUID which you need to send into Auto PI support for re-activation
Thank you 
Because I always confuse it.
Ok. I will save it !