Thanks for your reply.

Actually, I want to call workflow from Java code and pass Input as VM (VC:VirtualMachine) object, i tried with below code,

SdkObject obj = new SdkObject();

obj.setType("VC:VirtualMachine"); 

obj.setId("VCIP/vm-744");

context = new ExecutionContextBuilder().addParam("vm",obj).build();

WorkflowExecution execution = executionService.execute(workflow, context);

but it is pass null to VM input parameter in vCO workflow.

So i thought to pass Vm name as string and within workflow script i will convert that into VC:VirtualMachine object type. but i'm not able to do this.

Can anyone help me resolve this issue or on the workaround?