For synchronous plug-ins, the Microsoft Dynamics CRM platform handles exceptions passed back to the platform by displaying an error message in a dialog of the Web application user interface. The exception message for asynchronous registered plug-ins is written to a System Job (AsyncOperation) entity.
For plug-ins not registered in the sandbox, the exception message (System.Exception.Message) is also written to the Application event log on the server that runs the plug-in. The event log can be viewed by using the Event Viewer administrative tool. Since the Application event log is not available to sandboxed plug-ins, sandboxed plug-ins should use tracing. For more information, seeDebug a Plug-In.
You can optionally display a custom error message in a dialog of the Web application by having your plug-in throw an InvalidPluginExecutionException exception with the custom message as the Message property value. It is recommended that plug-ins only pass an InvalidPluginExecutionException back to the platform.
For plug-ins not registered in the sandbox, the exception message (System.Exception.Message) is also written to the Application event log on the server that runs the plug-in. The event log can be viewed by using the Event Viewer administrative tool. Since the Application event log is not available to sandboxed plug-ins, sandboxed plug-ins should use tracing. For more information, seeDebug a Plug-In.
You can optionally display a custom error message in a dialog of the Web application by having your plug-in throw an InvalidPluginExecutionException exception with the custom message as the Message property value. It is recommended that plug-ins only pass an InvalidPluginExecutionException back to the platform.
