Trigger process with Web Service or API

Hi @Markokostic1993

Is it Cloud API (platform.uipath.com) or your own instance?

I tested it for myself for the Cloud API on Community Orchestrator and this worked:

{
  "startInfo": {
    "ReleaseKey": "86c35aee-ef1d-4fa8-a30c-984b91bc6cb1",
    "Strategy": "Specific",
    "RobotIds": [
      168906
    ],
    "Source": "Manual",
    "InputArguments": '{"in_inputBox": "some value"}'
  }
}

Please try passing this as a header on top of the setting you use in the app:
image

Also, please beware of the syntax for the input argument.