# systemd-notify > Notify the service manager about start-up completion and other daemon status changes. > This command is useless outside systemd service scripts. > More information: . - Notify systemd that the service has completed its initialization and is fully started. It should be invoked when the service is ready to accept incoming requests: `systemd-notify --booted` - Signal to systemd that the service is ready to handle incoming connections or perform its tasks: `systemd-notify --ready` - Provide a custom status message to systemd (this information is shown by `systemctl status`): `systemd-notify --status="{{Add custom status message here...}}"`