In ServiceNow, the Duplicate CI Remediator is a governed tool designed to safely resolve duplicate Configuration Items while preserving the most valuable and authoritative record. The first step in the remediation wizard is identifying the Main CI, which will be retained after remediation.
ServiceNow uses two primary attributes to help determine the best candidate for the Main CI:
The oldest CI is often preferred because it typically has a longer operational history, may be referenced by historical incidents, changes, problems, or audits, and is more likely to be embedded in downstream processes and reports. Retaining the oldest CI helps avoid breaking historical references.
A CI with the most relationships (for example, links to applications, services, incidents, or other CIs) is generally the most valuable from a business and operational context perspective.
Preserving these relationships is critical for impact analysis, Change Management, and CSDM- aligned service modeling.