Unique identifier of the object.
Note that this identifies the instance of the physical devices pairing with your SumUp account. If you delete a reader, and pair the device again, the ID will be different. Do not use this ID to refer to a physical device.
Unique identifier of the object.
Note that this identifies the instance of the physical devices pairing with your SumUp account. If you delete a reader, and pair the device again, the ID will be different. Do not use this ID to refer to a physical device.