Glad to hear.
Still believe it would be better to use “Orchestrator HTTP Request” activity as proposed by @dokumentor and do not bother with authentication, just provide specific API endpoint, e.g. “/odata/Users” to get all users.
Using “HTTP Request” you will still need to build the Body (if needed by particular API call) and additionally you need to take care of the authentication, folders etc.
The only scenario when I can imagine the need of using “HTTP Request” is when you want access Orchestrator under other account than current robot.
Cheers