FAQ

[Evee]

What are the best practices for maintaining CMDB data accuracy and preventing duplicate CIs?

[Dr Atul - LNG · Accepted solution]

https://www.servicenow.com/community/cmdb-articles/best-practices-for-cmdb-data-management/ta-p/2841...

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0829103

[yashkamde · Accepted solution]

Hello @Evee ,

You can maintain CMDB Accuracy and Prevent Duplicate CIs:

• Use strong, unique identifiers (serial number, asset tag, correlation ID).

• Ensure all data sources use the Identification & Reconciliation Engine (IRE).

• Improve discovery quality by fixing patterns and credential issues.

• Configure identification rules carefully so IRE updates existing CIs instead of creating new ones. (for prevention)

• Standardize naming and attribute formats across all integrations. (for prevention)

Refer this :

Best practices for CMDB Data Management 

Handle Duplicate CIs in your CMDB 

If my response helped mark as helpful and accept the solution.

[Dr Atul - LNG · Accepted solution]

https://www.servicenow.com/community/cmdb-articles/best-practices-for-cmdb-data-management/ta-p/2841...

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0829103

[yashkamde · Accepted solution]

Hello @Evee ,

You can maintain CMDB Accuracy and Prevent Duplicate CIs:

• Use strong, unique identifiers (serial number, asset tag, correlation ID).

• Ensure all data sources use the Identification & Reconciliation Engine (IRE).

• Improve discovery quality by fixing patterns and credential issues.

• Configure identification rules carefully so IRE updates existing CIs instead of creating new ones. (for prevention)

• Standardize naming and attribute formats across all integrations. (for prevention)

Refer this :

Best practices for CMDB Data Management 

Handle Duplicate CIs in your CMDB 

If my response helped mark as helpful and accept the solution.

[Tanushree Maiti · Accepted solution]

Hi @Evee 

Check Get Well Playbook : KB0829103 Handle Duplicate CIs in your CMDB 

Maintain a healthy CMDB: https://mynow.servicenow.com/now/best-practices/assets/maintain-a-healthy-cmdb

https://www.youtube.com/watch?v=yYRubj_zsko&t=91s

https://www.youtube.com/watch?v=XXaYqJF0zUY&t=2s

Maintain a healthy CMDB