vCenter Orchestrator workflow WFStubMachineProvisioned failed with error: Error executing vCenter Orchestrator workflow: __NULL__..

Hi All,

I have a vCO Workflow which I wish to be executed by vCAC when the virtual machine has been provisioned.

My workflow has only 2 input params and I expect I get these properties from vCAC so they are not parameters in the blueprint.

- vCACHost (vCAC:Host)

- vCACVM  (vCAC:VirtualMachine)

I have an action results inside of the workflow called getPropertiesfromVirtualMachine with the following script: actionResult = System.getModule("com.vmware.library.vcac").getPropertiesFromVirtualMachine(host,virtualMachine) ;

If I run the workflow in vCO client everything works perfectly.

In vCAC when the machine has been provisioned I get the following error in vCAC and my workflow is not executed:

vCenter Orchestrator workflow WFStubMachineProvisioned failed with error: Error executing vCenter Orchestrator workflow: __NULL__..

Any clues / thoughts about the issue I face ? I am able to get these params automatically from vCAC and not from blueprint wfstubs params ?

Many thanks!