The Web messaging service uses standard WebSphere® Application Server logging and trace mechanisms. The package name for Web messaging service is com.ibm.ws.webmsg.* or com.ibm.websphere.webmsg.*. For more information on trace, refer to the following topic: working with trace. All configuration errors and operation errors are logged. If you encounter any erros running Web messaging service, check the logs first for more information on the cause of the problem.