Manually create a de-duplication task

concept brazil Updated Sep 10, 2026 1 min read manual-create-dedup-task.md

Manually create a de-duplication task when it is not automatically created. You can then use the Duplicate CI Remediator or the De-duplication dashboard in CMDB Workspace to remediate the manually created task.

In some situations, duplicate CIs are not automatically detected and de-duplication tasks are not automatically generated. Such situation happens with a class for which identification rules are not defined and the identification engine cannot be applied. However, you still want to reconcile these duplicate CIs by utilizing the Duplicate CI Remediator or the De-duplication Dashboard in CMDB Workspace.

Use the CMDBDuplicateTaskUtils API to manually create a de-duplication task in which all duplicate CIs are specified. The de-duplication tasks that you create manually and the automatically created tasks, are stored in the same table ([reconcile_duplicate_task]) and are processed in the same manner.

Note: You can manually create a de-duplication task only for CMDB CIs and a CI can be specified as a duplicate CI only in a single de-duplication task.

Parent Topic:Duplicate CIs remediation

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---
title: Manually create a de-duplication task
description: Manually create a de-duplication task when it is not automatically created. You can then use the Duplicate CI Remediator or the De-duplication dashboard in CMDB Workspace to remediate the manually created task.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/servicenow-platform/configuration-management-database-cmdb/manual-create-dedup-task.html
release: brazil
product: Configuration Management Database \(CMDB\)
classification: configuration-management-database-cmdb
topic_type: concept
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Duplicate CIs remediation, CMDB data management, Configuration Management Database \(CMDB\), Configuration Management, Extend ServiceNow AI Platform capabilities]
---

# Manually create a de-duplication task

Manually create a de-duplication task when it is not automatically created. You can then use the Duplicate CI Remediator or the De-duplication dashboard in CMDB Workspace to remediate the manually created task.

In some situations, duplicate CIs are not automatically detected and de-duplication tasks are not automatically generated. Such situation happens with a class for which identification rules are not defined and the identification engine cannot be applied. However, you still want to reconcile these duplicate CIs by utilizing the [Duplicate CI Remediator](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/servicenow-platform/configuration-management-database-cmdb/reconcile-dup-task.md) or the [De-duplication Dashboard](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/servicenow-platform/configuration-management-database-cmdb/dedup-ci-exp-cmdb-workspace.md) in CMDB Workspace.

Use the CMDBDuplicateTaskUtils API to manually create a de-duplication task in which all duplicate CIs are specified. The de-duplication tasks that you create manually and the automatically created tasks, are stored in the same table \(\[reconcile\_duplicate\_task\]\) and are processed in the same manner.

**Note:** You can manually create a de-duplication task only for CMDB CIs and a CI can be specified as a duplicate CI only in a single de-duplication task.

**Parent Topic:**[Duplicate CIs remediation](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/servicenow-platform/configuration-management-database-cmdb/de-duplication-tasks.md)