If you are running an advanced third-party Port Injection/Methanol Injection/FlexFuel controller (Motive Reflex etc), you will need to purchase this add-on service. This is for controller setup and tuning, which will requires a remote session to perform. This is separate from the custom DME flash calibration.
This is needed for car platforms that do not have external modules integrated into the tune calibrations yet (Ex. g80/g82 M3/M4 on Bm3 with original DME)