Serial number as unique in Hardware table

[Khushi_]

Serial number in hardware table is unique (could not create the asset with same number) but the unique check box is unticked. I am trying to configure the same in my development instance, anyone have the idea, how OOB serial number is configured.

[Ashok Sasidhara · Accepted solution]

The OOB check should be based on the serial number of the configuration item that is corresponding to the asset. It considers the identification rules configured for the corresponding CI class (like cmdb_ci_hardware or cmdb_ci_computer). This can be checked by going to CI class manager, opening the required CI class, clicking on the identification rules tab and reviewing the identifier entries (the steps are highlighted in the attached screenshot). As you can see, serial number is the first criteria that will be checked to match whether a hardware CI exists (it is same for computer CIs also as the OOB identifier entries for computer CIs are derived from the parent hardware CI class).

Please go through the following URL to understand more about the identification rules:

https://docs.servicenow.com/bundle/vancouver-servicenow-platform/page/product/configuration-manageme...

Additionally also review if there are any business rules, scripts etc. configured in your instance for the asset tables by typing alm_asset.config (for assets table) or alm_hardware.config (for hardware assets table).

[Khushi_]

Thank you so much for your response. After checking all the configuration, I finally found a function in script include, which was called from another script include & the changes has been done.