---
sourceDocument: Australia ServiceNow AI Platform Capabilities
sourceDocumentLink: https://www.servicenow.com/docs/r/servicenow-platform

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia ServiceNow AI Platform Capabilities

ft:clusterId :

    - platcap

bundleId :

    - platcap

workflow :

    - Platform


---

# Dynamic CI Group

# Use the Dynamic CI Group method to populate application services {#ariaid-title1}

* Release version: Australia
* 
* Updated March 12, 2026
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 minutes to read

The Dynamic CI Group method for populating an application service, automatically
generates a dynamic CI group. The members of the CMDB group that the dynamic CI group is
based on, populates the application service. The application service continuously
synchronizes with the CMDB group to reflect any changes in membership in the CMDB
group.

## Before you begin

The Dynamic CI Group is one of several methods for populating an application service with CIs. Choosing a method for populating an application service, is only one step of the generic procedure for creating an application
service. Ensure that you have completed the initial steps as described in [Create an application service](https://www.servicenow.com/docs/LKd87HjvwYKREPw7DmJc5Q "Create an application service to adhere to Common Service Data Model standards and to standardize the organization, maintenance, and monitoring of services in your organization."). The procedure described here is incomplete by itself as it complements that generic procedure.  
Note:  
* The number of CIs in an application service that is populated by the Dynamic CI Group method, is limited to 10,000, even if the associated CMDB group has more than 10,000 CIs.
* A CMDB group can be used to populate only a single application service. For more information about populating and using CMDB groups, see [CMDB groups](https://www.servicenow.com/docs/Ewk~mxqXyL9RyrquzKHGJg#cmdb-groups "A CMDB group is a collection of CIs that lets you apply CI actions collectively to all the CIs that are members in the group.").
* A dynamic CI group contains CIs but can't contain other groups.
{#populate-app-service-dynamic-group__ul_xcy_4sl_vlb}

For information about the different types of application services and the different
methods you can use to populate application services, including Dynamic CI Group,
see [Service instances (Application services)](https://www.servicenow.com/docs/icjOdwhjFoybNcN98xydAQ "Understand service instances (application services), learn about different application service types and how multiple ServiceNow business units and products use them.").

Role required: app_service_admin

## Procedure

1. In the Choose a Method page, select Dynamic CI Group as the Service Population Method.
2. Fill out the fields that appear, which are specific to the Dynamic CI Group service population method.  
   {#populate-app-service-dynamic-group__table_spq_2cx_blb__entry__2}

   | Field | Description |
   |-|-|
   | Service Population Method | The method used for populating the application service with CIs. Set to Dynamic CI Group. |
   | CMDB Table | Notes the Dynamic CI Group \[cmdb_ci_query_based_service\] table, in which application services created by the Dynamic CI Group method, are stored. |
   | Group Name | The CMDB group whose members become members the application service. Note: CIs from a class that extends the cmdb_ci_service class (Services), are automatically filtered out and are not added to the application service. |
   [ ]

   {#populate-app-service-dynamic-group__table_spq_2cx_blb}
3. Select Save.

## Result

The alert impact on dynamic CI groups is calculated on the following CIs:

* All CIs that are part of the dynamic CI's CMDB group.
* Children of current CIs with a relationship of: Runs on::Runs
* CIs related to either the current CIs or their children, with a relationship of: Virtualized by::Virtualizes
{#populate-app-service-dynamic-group__ul_er2_y3d_rvb}

For more information, see [alert impact
calculation](https://www.servicenow.com/docs/access?context=c_EMImpactCalculation&version=australia&pubname=australia-it-operations-management&ft:locale=en-US).

## What to do next

Complete the generic procedure [Create an application
service](https://www.servicenow.com/docs/LKd87HjvwYKREPw7DmJc5Q "Create an application service to adhere to Common Service Data Model standards and to standardize the organization, maintenance, and monitoring of services in your organization.").