Hi Richard/Hetal,
Apologies for delay in reply.
For .NET Workflow services, you will need to configure POCO entry point rules in order to initiate business transaction detection on relevant class/methods.
To identify potential entry points, please enable find-entry-points node level property to "true" and apply load on application for 10 minutes and provide us complete zip of DotNetAgent folder from below location. We will assist you accordingly.
Windows Server 2008 and later: %ProgramData%\AppDynamics\DotNetAgent
Windows Server 2003: %AllUsersProfile%\Application Data\AppDynamics\DotNetAgent
Following documents will provide you more information on "find-entry-points" and POCO rules:
find-entry-points : https://docs.appdynamics.com/display/PRO41/App+Agent+Node+Properties+Reference#AppAgentNodePropertiesReference-find-entry-points
Enabling find-entry-points : https://docs.appdynamics.com/display/PRO41/App+Agent+Node+Properties#AppAgentNodeProperties-editregisterednodepropertyEditaRegisteredNodeProperty
Custom Match Rule of type POCO : https://docs.appdynamics.com/display/PRO41/POCO+Entry+Points
Thanks,
Ramana