Greetings Splunk Ninjas!
I have installed the SCOM add-on, configured it using an account which has both administrative rights to the SCOM server, and SCOM console. Further, I have verified the GET-SCOM* commands work inside the server Powershell. However, when initializing the application, the message is repeated in the log: index=_internal source=*ta_scom.log
2016-06-02 07:03:39 -04:00 [ERROR] New SCOMManagementGroupConnection Fail: Unable to find type [System.Net.WebUtility]: make sure that the assembly containing this type is loaded.
You need to have the add-on installed on a HFW or Light W. forwarder and on the console server for data collection.
from the doc:
Splunk recommends using a heavy forwarder for data collection because the add-on requires Python and the Splunk Add-on for Microsoft SCOM UI is recommended to configure inputs. The Splunk Add-on for Microsoft SCOM and the forwarder must be installed on the same machine as the SCOM Operations console.