Is it required to create the parent host group before creating nested host groups in Zabbix?

In Zabbix, it is not a requirement to create a parent host group before creating nested host groups. Nested host groups can be created independently, meaning that you can establish child groups without setting up the parent groups first.

This flexibility allows for versatile organizational structures within Zabbix, enabling users to create and arrange their host groups according to their specific needs without being confined to a strict hierarchy initially. Therefore, having the ability to create nested host groups autonomously can simplify the configuration process and adapt to various user scenarios.

While there are scenarios where users may choose to establish a parent group for organizational clarity, it is not mandatory from a technical standpoint. This autonomy makes it easier for administrators to manage hosts and related monitoring data in a way that best fits the monitoring environment they are working within.