The documentation provides information on how to delete custom metrics.
However, I do not see any way of deleting custom devices.
Using the custom metrics and custom devices I have created a custom device. Is it possible to delete it afterwards?
Solved! Go to Solution.
Custom devices that were created through the UI can be deleted any time by navigating to it and clicking on the "..."
Those that were created through the API cannot be deleted directly. Instead they will be automatically deleted when all their associated custom metrics were deleted via Timeseries API (this is according to feedback from support and unverified by me).