CMDB Health Dashboard - Custom rule for identification of duplicate CIs

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How can I understand about SNC.MetricProcessorScript.correctnessManager() deciding for consideration for Duplicates CIs. Is there any way if I can make changes in logic for Duplicate CIs consideration or create any custom rule for the same.

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Kirk On BEST ANSWER

If you're on Geneva or newer, you can adjust the duplicate detection by changing the Identifier record for the type of Configuration Item you are looking to tweak.

You adjust the Identifier Entries to determine how things match and if there is a duplicate entry.

It does this by going in the order of Priority and the Criterion attributes. Effectively it matches existing Configuration Items with these Criterion attributes to determine if it's a duplicate.

You can add a new Identifier Entry or disable existing ones.

Also you can add the Optional condition field to the Identifier Entry form and add criteria to tweak behavior.

This is a great article on this Duplicate Configuration Items in the ServiceNow CMDB.

If you can post details on what you are experiencing, someone may be able to help with your specific case.