The NeoLoad Controller used to convert the Tosca SAP script must be 32 bits and launched in process mode (service mode is not supported).
You can find more information about NeoLoad prerequisites for SAP GUI at this Page.
Neoload starts the SAP recording at the first step named "SAP" or "SAP Login", and stops it at the end of the test case.
This is what you get in NeoLoad:
For more information, please check our GitHub article dedicated to the conversion of a Tricentis Tosca SAP script to a NeoLoad User Path.