How to decide Main CI in De-duplication task in CMDB

[Asmita7]

Hi friends,

I am stuck across creating De-duplication template. I am not able to create condition for how to decide the Main CI?

1. Oldest created

2. Most recent discovered

3. More related items

4. Discovery source

5. Most relationships

6. Has asset

7. based on condition

Which approach to follow to select main CI ?

Please suggest.

Your help is valuable and appreciated.

Thank you

Asmi

[Tanushree Maiti]

Please refer this links, see if it helps you:

https://www.servicenow.com/community/cmdb-forum/de-duplication-template-option-to-make-last-newest-d...

[Preetha K]

Best Practice Order (Industry Standard)
Most implementations follow something like this:

1.Discovery Source (authoritative)
2. Has Asset
3. Most Relationships
4. More Related Items
5. Most Recent Discovered
6. Oldest Created (last fallback)

Main CI priority:

1. CI with Discovery Source = ServiceNow Discovery
2. If equal → CI with Asset
3. If equal → CI with most relationships
4. If equal → Most recently discovered
5. If equal → Oldest created

Avoid using only one condition. Use a priority stack of multiple rules so the system can always decide the correct CI.