Fresh deployment of ZENworks Service Desk 23.4 is not supported. However, you can deploy ZENworks Service Desk 8.3.x, and then update to ZENworks Service Desk 23.4. ZENworks Service Desk 23.4 is available only through Online channel. If you are already using ZENworks Service Desk 23.3, then you can upgrade using the Online Update channel.
To deploy ZENworks Service Desk 8.3.x, see the Appliance Deployment section in the Service Desk Appliance Deployment and Administration Reference.
To update to ZENworks Service Desk 23.4, see Migrating the Appliance.