How de duplicate tasks are created in CMDB?

kiran115
Tera Contributor

‎06-20-2023 05:44 AM

I have uploaded a bunch of data into the hardware CI class. I have seen some of the duplicates are filtered and for each record, a de-duplicate task got created. How this is happening? Can anyone explain? Is there any flexibility to change its configuration? Suppose that de-duplicate tasks should create and it should be assigned to a particular group. How this can be achieved?

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Henrik Jutterst
Tera Guru

‎06-20-2023 06:45 AM - edited ‎06-20-2023 06:48 AM

Hi there @kiran115 

 

This is a big topic regarding duplicate CIs and the task related to it. But I'll try to give you a short answer and see if I can find an article that I used here myself when dealing with this.

 

The short answer to why ServiceNow will mark CIs as a duplicate is that whenever a CI is updated in CMDB the Identification and Reconciliation engine (IRE) will process data and based on what's defined there in the class, it will mark it as a duplicate.

 

In Class Manager under Identification Rule you see what's specified for each class

HenrikJutterst_0-1687268730317.png

 

 

Here's the article I was thinking about. It's quite detailed, but I think you will get your answers there.
Getting Started: CMDB Health Automation