What is required in the lowest domain level when Domain Separation is enabled?

In an environment where Domain Separation is enabled, the lowest domain level requires MID Servers. MID (Management, Instrumentation, and Discovery) Servers play a crucial role in connecting the ServiceNow instance to the external world for activities such as discovery and orchestration. They act as a bridge between the ServiceNow instance and various external resources, enabling the collection of data, and execution of tasks in different domains.

When Domain Separation is configured, the MID Server must operate at the lowest domain level to ensure that it can accurately gather and process information relevant to that specific domain. This ensures that the discovery processes adhere to the domain configurations and security requirements, allowing for data integrity and isolation between different organizational units.

Other components like Application Servers and Service Mapping Instances may function within their defined roles but do not specifically align with the requirements of Domain Separation at the lowest domain level in the same context as the MID Servers.