Typically, server products list problems in an error log, and optionally allow you to configure e-mail notifications.
GUI tool products generally show messages in a status window. Additionally, some products may support a command or menu option, such as to display the current license status.
If you use served licenses, and license servers, all license server status and error messages are written to the SYBASE.log debug file, which is located, by default, in the log subdirectory.