Hello, I have built a custom smart service that has an input parametehttps://community.appian.com/discussions/f/plug-ins/3358/hello-i-have-built-a-custom-smart-service-that-has-an-input-parameteHello, I have built a custom smart service that has an input parameter defined using an enumeration. My issue is that when i&#39;m adding this custom smart service in a process model the input parameter (in the Value field) DOESN&#39;T show me ONLY the list ofen-USTelligent Community 12RE: Hello,<br /><br />I have built a custom smart service that has an input parametehttps://community.appian.com/thread/11749?ContentTypeID=1Wed, 03 Sep 2014 10:12:10 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:e488ac54-1d8b-4d3c-a2ec-98787107e1bdEduardo FuentesThat is the default behavior of the &quot;Value&quot; dropdown for any smart service; it will show also all process variables that match the type of the node input. In this case your naming convention (best practice) should help the developer to differentiate between process variables and enumeration values.<div style="clear:both;"></div>