---
sourceDocument: Brazil Security Management
sourceDocumentLink: https://www.servicenow.com/docs/r/security-management

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil Security Management

ft:clusterId :

    - security

bundleId :

    - security

workflow :

    - Technology


---

# Creating CIs using the Identification and Reconciliation engine

# Creating CIs using the Identification and Reconciliation engine {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 minutes to read  
You can create configuration items (CIs) in the Configuration Management Database (CMDB) using the Identification and Reconciliation engine (IRE) API. By using the IRE API to create CIs, you can prevent duplicate CIs from being created and you can reconcile CI attributes by
allowing only authoritative data sources to write to CMDB.

A CI class (table) is the original table name in the instance database. CMDB contains base system classes that store data about CIs.

## Using IRE for CI creation {#sem-ci-creation-using-IRE__section_q1r_1m5_lnb}

If a matched CI isn't found either in the Discovered Items list or CMDB, a CI is created in the Unmatched CI class
(`sn_sec_cmn_unmatched_ci`).

Starting with v24.0.6 of Vulnerability Response, if IRE encounters exceptions that prevent the creation of CIs, the specifics of these exceptions are recorded in the Additional Information field. By examining the details in this field, you can
determine the root cause and implement the necessary corrections to ensure the CI is successfully created.

Starting with Vulnerability Response v12.2 to v18.0, if no match is found when the CI lookup rules are applied, the asset information is sent to IRE and a CI is created in one of the Unclassed Hardware and
Incomplete IP Identified Device classes. Starting from Vulnerability Response v18.0, a new class, Cloud Resource is also included. For more information on how to configure the categorization of unmatched cloud resources into your preferred CI class, see [Updating CI class for unmatched cloud assets](https://www.servicenow.com/docs/tAa0Rs_8G2tfCcGpsQYSrg "Starting with Vulnerability Response v20.0, you can categorize the unmatched cloud assets from Qualys, Rapid7 and Tenable scanners into Unclassed Hardware by using the sn_sec_cmn.unmatched_cloud_resource_enabled system property.").

## CMDB CI classes {#sem-ci-creation-using-IRE__section_acq_czt_knb}

Note:  
To use the new classes, activate the CMDB CI Class Models plugin. Otherwise, CIs are created in the Unmatched CI class.  
If the host that you imported from a third-party scanner can't be found in the Discovered Items list or CMDB, it's created in one of the following new CMDB CI classes.{#sem-ci-creation-using-IRE__table_nxb_kyt_knb__entry__2}

| CMDB CI Class | Description |
|-|-|
| Incomplete IP Identified Device (cmdb_ci_incomplete_ip) | CI is created in this table if only the IP address is available in the host information that is received from the scanner. |
| Unclassed Hardware (cmdb_ci_unclassed_hardware) | CI is created in this table if any of the following information is available in the host information that is received from the scanner: * Host name * IP address * DNS * NETBIOS * MAC address {#sem-ci-creation-using-IRE__ul_ngp_3sw_lnb} Note: If the MAC address is available, the network adapter entry is created and related to the unclassed hardware CI. If both the IP and MAC addresses are available, the IP address CI is also created and related to the unclassed hardware CI. |
| Cloud Resource (cmdb_ci_cmp_resource) | CI is created in this table if Cloud Resource ID is available in the host information that is received from the scanner. Note: If the Asset Type of a scanner integration is Hybrid and the sn_sec_cmn.unmatched_cloud_resource_enabled system property is false, the CIs are created in the Unclassed Hardware class but not in the Cloud Resource class. |
[Table 1. CMDB CI classes]

{#sem-ci-creation-using-IRE__table_nxb_kyt_knb}

If the Identification and Reconciliation engine (IRE) is activated, the reclassify option from discovered items is not supported.  
The system automatically uses an Unmatched CI class if one of the following occurs:

* The CMDB CI Class plugin is not activated.
* IRE raises an exception while creating a CI.
{#sem-ci-creation-using-IRE__ul_gzm_pq5_dnb}
* **[Updating CI class for unmatched cloud assets](https://www.servicenow.com/docs/tAa0Rs_8G2tfCcGpsQYSrg)**   
  Starting with Vulnerability Response v20.0, you can categorize the unmatched cloud assets from Qualys, Rapid7 and Tenable scanners into Unclassed Hardware by using the sn_sec_cmn.unmatched_cloud_resource_enabled system property.

**Related topics**   

* [CMDB CI Class Models store app](https://www.servicenow.com/docs/access?context=cmdb-ci-class-models&version=brazil&pubname=brazil-servicenow-platform&ft:locale=en-US)
* [Identification and Reconciliation engine (IRE)](https://www.servicenow.com/docs/access?context=ire&version=brazil&pubname=brazil-servicenow-platform&ft:locale=en-US)