Find attached my solution for the same issue. Unfortunatelly this is only working after the request is complete. Furthermore browsing through all requests is maybe not the best solution. Looking for someone who is finding a better solution.
CRs = vCACCAFEEntitiesFinder.getCatalogResources(vCACCAFEHost);
for each (CR in CRs)
{
if (CR.providerBinding.getBindingId() == vCACVm.virtualMachineID)
{
Req = vCACCAFEEntitiesFinder.getCatalogItemRequest(vCACCAFEHost ,CR.requestId);
vCACRequestNumber = Req.requestNumber;
break;
}
}










