Flow Monitor not working

Flow Monitor not working

I'm trying to get flow monitoring working on our switches. I've enabled it on the Dell switches, tested this with wireshark and sflow traffic is coming into the server. But I can't get any information to display in OpManager.

Is there something I need to install? I can't find a plug in anywhere on the website.
                New to ADManager Plus?

                  New to ADSelfService Plus?