--- sourceDocument: Brazil ServiceNow AI Platform Capabilities sourceDocumentLink: https://www.servicenow.com/docs/r/servicenow-platform Release : - brazil ft:locale : - en-US ft:publication_title : - Brazil ServiceNow AI Platform Capabilities ft:clusterId : - platcap bundleId : - platcap workflow : - Platform --- # Properties related to remediation of duplicate CIs # Properties related to remediation of duplicate CIs {#ariaid-title1} Release version: Brazil Updated September 10, 2026 ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 minutes to read Summarize ![AI sparkle icon](https://servicenow.com/docs/portal-asset/ai-sparkle-icon) Summarized using AI This content was generated using new OpenAI-powered functionality. Results are provided on an as is basis and are not guaranteed to be accurate or complete. ## Summary of Properties related to remediation of duplicate CIs These properties configure how duplicate Configuration Items (CIs) are remediated using the Duplicate CI Remediator or the De-duplication Dashboard in CMDB Workspace. Access to view or modify these settings requires thesncmdbadminoradminrole. The properties influence which attributes and related tables are considered during remediation, control performance thresholds, enable test runs, and manage remediation modes. Show full answer Show less ## Key Properties and Their Practical Use * **glide.duplicateciremediator.max.fieldlength**: Sets the maximum attribute length considered in remediation (default 4000 characters). Attributes exceeding this length are excluded from key remediation steps to optimize performance. Data longer than this is truncated if equal to the limit. * **glide.duplicateciremediator.relateditemsblacklist**: Lists related tables and reference columns excluded from merging during remediation. This prevents updates on sensitive or non-mergeable related data (default includes tables like certtask.cmdbci and almasset.ci). * **glide.duplicateciremediator.max.cis**: Defines the threshold for the number of duplicate CIs to handle with full reconciliation support (default 1000, capped at 5000). Exceeding this limit restricts reconciliation capabilities to maintain performance. * **glide.duplicateciremediator.dryrun**: Enables test runs without updating records (default false). When true, remediation changes are simulated and documented in work notes, allowing validation before actual data modification. * **glide.duplicateciremediator.enablerestrictedmode**: Activates restricted mode remediation, limiting the use of related items and allowing blocked remediations to proceed via a special option. This mode helps manage complex remediation scenarios safely. * **glide.duplicateciremediator.mergerelateditemsenhanced**: Allows ignoring database errors and disabling workflows/business rules on related tables during remediation (default true). This helps avoid failures caused by automated processes blocking CI updates. ## Key Outcomes for ServiceNow Customers * Optimize duplicate CI remediation by controlling attribute lengths and excluding specific related tables to improve performance and accuracy. * Manage large volumes of duplicate CIs effectively by respecting system thresholds that prevent performance degradation. * Test remediation impact safely with dry run mode before applying changes to production data. * Utilize restricted mode and enhanced error handling to handle complex or blocked remediations without failure. * Ensure smoother and more reliable duplicate remediation processes by configuring these properties according to your organization's CMDB structure and operational needs. Use de-duplication properties to configure how remediation of duplicate CIs works when using the Duplicate CI Remediator, or the De-duplication Dashboard in CMDB Workspace . To view and edit these properties, the sn_cmdb_admin or admin role is required. Although the properties below reference the [Duplicate CI Remediator](https://www.servicenow.com/docs/ieFtTzktpuX~1tbbixFFCA "Remediate a single de-duplication task by using the Duplicate CI Remediator wizard. Use the wizard to guide you through the duplicate CI reconciliation process or to apply a custom workflow."), these properties have an equivalent effect in [CI de-duplication experience in CMDB Workspace](https://www.servicenow.com/docs/x1uikhqIlPIXx4MSBoQOMw "Create libraries of de-duplication templates in CMDB Workspace, to process de-duplication tasks which remediate duplicate CIs, in a consistent manner and in bulk. De-duplication templates are pre-configured with all necessary settings for remediating duplicate CIs in de-duplication tasks, per class."). {#properties-duplicate-ci__table_thf_j3w_5gb__entry__2} | Property | Description | |-|-| | Attributes in which max_length exceeds this property value (4000 by default) are excluded from the Select Main CI, Merge Attribute Values, and Determine Duplicate CI Actions tabs in the Duplicate CI Remediator wizard. glide.duplicate_ci_remediator.max.field_length | If the max_length for an attribute is equal to the property value, and the size of the data exceeds the property value, then the data is truncated to the property value and the attribute appears in attribute lists. * Type: integer * Default value: 4000 * Location: ConfigurationCMDB PropertiesDuplicate CI Remediator Properties {#properties-duplicate-ci__ul_hk4_4jw_5gb} Note: This property impacts the performance of de-duplication tasks, therefore be cautious about setting this value. | | Comma separated list of related tables in the format '\.\', that are excluded from merging during duplicate CI remediation. glide.duplicate_ci_remediator.related_items_blacklist | * Type: string * Default value: cert_task.cmdb_ci,cert_audit_result.configuration_item,discovery_log.cmdb_ci,alm_hardware.ci,alm_asset.ci,fm_expense_line.ci * Location: ConfigurationCMDB PropertiesDuplicate CI Remediator Properties {#properties-duplicate-ci__ul_dh1_pjw_5gb} | | Threshold for the number of duplicate CIs, which if exceeded, support for reconciliation in the Duplicate CI Remediator is limited (1,000 by default). glide.duplicate_ci_remediator.max.cis | * Type: integer * Default value: 1000 * Location: ConfigurationCMDB PropertiesDuplicate CI Remediator Properties * Learn more: See 'Large number of duplicate CIs' in [Remediate a de-duplication task (manual)](https://www.servicenow.com/docs/ieFtTzktpuX~1tbbixFFCA "Remediate a single de-duplication task by using the Duplicate CI Remediator wizard. Use the wizard to guide you through the duplicate CI reconciliation process or to apply a custom workflow."). {#properties-duplicate-ci__ul_lr4_jkw_5gb}This threshold never exceeds 5,000, even if you set the property to a value greater than 5,000. | | Determines whether the Duplicate CI Remediator actually remediates CI duplication by updating records in the CMDB, or not. glide.duplicate_ci_remediator.dry_run | When set to false (default value), updates specified in the wizard are actually performed. You can set this property to true and then test run through the Duplicate CI Remediator without any records actually being updated. In this case, the work notes for the task describe the changes that will happen in an actual remediation. * Type: true \| false * Default value: false * Location: ConfigurationCMDB PropertiesDuplicate CI Remediator Properties {#properties-duplicate-ci__ul_uvv_n4y_rw} | | glide.duplicate_ci_remediator.enable_restricted_mode | Enables restricted mode remediation in the Duplicate CI Remediator. This option restricts the use of related items in de-duplication remediation and allows a blocked remediation to proceed using the Use the Duplicate CI Remediator (Restricted Mode) option. For more information, see [Using restricted mode within the Duplicate CI Remediator \[KB1542272\]](https://support.servicenow.com/kb_view_customer.do?sysparm_article=KB1542272). * Type: true \| false * Default value: false * Location: [Add to System Properties \[sys_properties\]](https://www.servicenow.com/docs/access?context=t_AddAPropertyUsingSysPropsList&version=brazil&pubname=brazil-platform-administration&ft:locale=en-US) * Learn more: [Remediate a de-duplication task (manual)](https://www.servicenow.com/docs/ieFtTzktpuX~1tbbixFFCA "Remediate a single de-duplication task by using the Duplicate CI Remediator wizard. Use the wizard to guide you through the duplicate CI reconciliation process or to apply a custom workflow.") {#properties-duplicate-ci__ul_ryn_znv_czb} Set to true to enable restricted mode remediation. | | glide.duplicate_ci_remediator.merge_related_items_enhanced | Enables the capability to ignore database errors and/or skip ALL business rules (disable workflow) in related tables referencing CIs, during duplicate CI remediation. In such related tables, automated workflows such as business rules might prevent the update of the referenced CI to the main CI, causing de-duplication tasks to fail. In these situations, blocking business rules and other automated workflows, and ignoring errors allows remediation to complete. * Type: true \| false * Default value: true * Location: [Add to System Properties \[sys_properties\]](https://www.servicenow.com/docs/access?context=t_AddAPropertyUsingSysPropsList&version=brazil&pubname=brazil-platform-administration&ft:locale=en-US) * Learn more: [Turn off workflows of related tables during remediation](https://www.servicenow.com/docs/p7MLIVnRVNMygxR5JDgS4g "Configure de-duplication remediation processes for related tables, to turn off the execution of business rules, workflows, and any other automatic processes that might be turning off the update of referenced duplicate CIs to the main CI. Disabling all these workflows of related tables, allow de-duplication tasks, that would otherwise fail, to complete."). {#properties-duplicate-ci__ul_cxw_pn3_vgc} | [ ] {#properties-duplicate-ci__table_thf_j3w_5gb} *[\>]: and then