100% Accuracy in CI

[Vaibhav Ramteke]

Hi @community,

How to do 100% accuracy in CI, im trying to find out but not get anything plz suggest.

Thank you in advance 

[meghanakra]

Achieving 100% CI accuracy in a CMDB is more of an ideal goal than a practical reality. In real-world IT environments, changes happen continuously — new servers are added, cloud resources are created or deleted automatically, applications are updated, systems are retired, and sometimes manual updates are missed.

Because of these constant changes, maintaining absolute accuracy at every moment is extremely difficult, even for mature organizations with strong CMDB processes.

That’s why most companies focus on maintaining a “trusted and healthy CMDB” rather than expecting perfect 100% accuracy. The goal is to keep the data as accurate, reliable, and up to date as possible using tools and practices such as Discovery, automation, Service Mapping, governance, reconciliation rules, and regular CMDB health checks.

In simple words:
A CMDB is a living and continuously changing system, not a static Excel sheet. So the real success is continuous improvement and maintaining high confidence in the CI data, rather than chasing absolute perfection.

[Its_Azar]

Hi there @Vaibhav Ramteke 

100% CI accuracy is not realistically possible bcoz infrastructure keeps changing constantly.

In ServiceNow, the goal is usually high CMDB accuracy through good governance and automation.

Main things that helpzz:
• Proper Discovery & Service Mapping
• Correct Identification/Reconciliation rules
• Removing duplicate & stale CIs
• CMDB Health monitoring

[Tanushree Maiti]

Hi @Vaibhav Ramteke 

Ensuring near-perfect accuracy in the ServiceNow Configuration Management Database (CMDB) is an ongoing journey that relies on effective governance, automated discovery tools, and disciplined data management practices rather than a one-time correction.

Achieving absolute accuracy across every attribute may be challenging, organizations can maintain highly accurate CMDB data through continuous monitoring, automation-driven workflows, and proactive remediation strategies.

Few tips:

• Rely on automated discovery to populate CIs. This minimizes human error
• Use Service Graph Connector for connecting to third-party tools like SCCM, Jamf, or cloud providers (like AWS, Azure etc) to keep CI data current, as they are tailored for CMDB ingestion.
• Ensure unique attributes (e.g., Serial Number, Name, MAC address) are correctly configured in the CI Class Manager
• Set Reconciliation Rule properly
• Assign ownership to ensure accountability for the accuracy and lifecycle management of CI data
• You can use the CMDB Workspace or Service Graph Workspace landing page and its views to fully administer and use Data Certification (refer: Data Certification )
• Use CMDB data manager  to automate the lifecycle of Configuration Items (CIs) in bulk, essential for maintaining a healthy, performant, and compliant CMDB. It enables automated deletion, archiving, and attestation of stale or orphaned data, replacing manual processes to improve system performance
• Using Deduplication Tasks in Servicenow is the recommended way to merge duplicate Configuration Items (CIs) and ensure your CMDB remains the "single source of truth."
• Refrain from manual CI creation in production for SaaS or infrastructure, as it introduces human error and becomes stale quickly.
• Leverage CMDB Health Dashboard to monitor metrics regarding Completeness, Compliance, and Correctness.

Refer: Best practices for CMDB Data Management