The kiosk user accounts in the kiosk user pool must have contiguous user IDs. If any user accounts were added after the configuration of the initial pool of kiosk user accounts, you cannot use the kioskuseradm extend command. The extend option relies on kiosk user accounts with contiguous user IDs.

To work around this issue, you must delete all the kiosk user accounts and recreate them by using the kioskuseradm delete and kioskuseradm create commands, respectively. This process requires you to stop the Sun Ray services on the Sun Ray server. If you have a failover group, performing these steps on each Sun Ray server separately will avoid user downtime.