Bring Your Own License (BYOL) is a licensing model that lets corporate customers use their existing licenses flexibly, on-premise or in the cloud, without additional fees. Under this model, the customer remains responsible for managing these licenses, including renewals. For migrations from on-prem to the cloud, you can set BYOL in the plan configuration.
If you enable BYOL, Turbonomic assumes that you are paying for the OS license, and will not include the license cost in the plan results. If you do not enable BYOL, Turbonomic gets the license cost from the service provider (when it can) and includes that cost in the plan results.