---
title: Service \(CMDB\) Main node configuration
description: The Service \(CMDB\) Main node configuration defines the relationships for the services. Existing customers typically use the Service \(CMDB\) Main node configuration, while new customers use the Opres with CSDM header Main node configuration. Administrators can display or hide the Services overview or Business services overview based on organizational needs.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/governance-risk-compliance/main-node-config-bs-cmdb.html
release: australia
topic_type: concept
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [Configuring 360º views for services and processes, Configure, Operational Resilience, Governance, Risk, and Compliance]
---

# Service \(CMDB\) Main node configuration

The Service \(CMDB\) Main node configuration defines the relationships for the services. Existing customers typically use the Service \(CMDB\) Main node configuration, while new customers use the Opres with CSDM header Main node configuration. Administrators can display or hide the Services overview or Business services overview based on organizational needs.

For the Service \(CMDB\) Main node configuration, the source typically used is OpRes CMDB and the table used is Configuration Item \[cmdb\_ci\].

## Node relationship configurations

You can configure the node relationships in the Service \(CMDB\) Main node configuration. Configure the sequence, source table, relationship table, target table, and active flag as shown in the example.

\[Omitted image "node-rel-config-bs.png"\] Alt text: Business Service \(CMDB\) Main node configuration.