CRM SDK provides way for you to include the debug details about your plug-in in case you need to trace the plug-in execution. For this you will have to initialize the “ITracingService”. The service provides way to trace the details and display it whenever plug-in fails and throws an exception.
//Initialize the service
ITracingService tracingService = (ITracingService)serviceProvider.GetService(typeof(ITracingService));
Once initialized, you just need to add the logical and meaningful details as per your logic using below code,
Shown below is the example of message shown to the user when plug-in fails and throws exception.