Refresh impacted services properties

  • Release version: Yokohama
  • Updated January 30, 2025
  • 2 minutes to read
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    Summary of Refresh impacted services properties

    The Refresh impacted services properties in ServiceNow allow you to enable or disable the refresh impacted services capability and configure how impacted services are identified and processed on Change requests. These properties help you control whether to include all affected configuration items (CIs) or just the primary CI, manage background processing of refresh operations, and determine how Service Offerings and Business Applications are populated from impacted services.

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    Key Features

    • Include Affected CIs: By setting com.snc.changerequest.refreshimpacted.includeaffectedcis to true, all CIs in the Affected CIs related list are checked against the Application services mapping table (svcciassoc) for faster and more concise service impact analysis. If false, only the primary CI on the Change form is used, traversing the CMDB tree structure via CIUtils.
    • Conflict Checking: The change.conflict.populateimpactedcis property enables the system to check for business services directly impacted by conflicts, using the svcciassoc and cmdbciservice tables.
    • Background Processing: When com.snc.changerequest.refreshimpacted.event is true, refreshing impacted services runs as a background event with completion notifications. If false, it runs synchronously without notifications.
    • Populating Related Lists: The properties com.snc.changerequest.populateserviceoffering and com.snc.changerequest.populatebusinessapplication control whether the Service Offerings and Business Applications related lists are automatically populated from Impacted Services.
    • User Notifications: The com.snc.changerequest.refreshimpactedservices.message.show property controls the display of a message indicating the refresh operation has started on the Change request form.

    Practical Application for ServiceNow Customers

    By configuring these properties, you can tailor how impacted services are identified and processed during Change management, improving accuracy and performance. For example, enabling inclusion of all affected CIs can provide a comprehensive impact analysis, especially when dynamic CI groups are used. Running the refresh as a background event improves user experience by offloading processing and providing notifications. Managing related lists ensures that Service Offerings and Business Applications reflect current impact data, supporting better decision-making.

    Adjust these settings based on your organizational needs for impact analysis accuracy, system performance, and user communication during Change processes.

    Use the refresh impacted services properties to enable or disable the refresh impacted services capability, and to configure the criteria for additional refresh impacted services properties.

    By configuring these properties, you can control the capabilities, such as:
    • Include the primary configuration item or all the items in the Affected CIs related list.
    • Processing of refreshing the impacted services as an event.
    • Populate Service Offerings and Business Applications from the Impacted Services related list.

    The following properties can be found in sys_properties.list and on the Change properties page.

    Table 1. Refresh impacted services properties
    Property Description
    com.snc.change_request.refresh_impacted.include_affected_cis
    • When true, all the configuration items listed in the Affected CIs related list are checked. These configuration items are checked against the Application services mapping table (svc_ci_assoc) as this is a faster process, and also returns a more concise relationship picture. All the services from svc_ci_assoc table are retrieved.
    • If the property is false, only the CI on the change form is used. This uses the method of traversing the cmdb tree structure to find the services. The services are retrieved from CIUtils script include.
    Note:
    If dynamic CI groups are used on the Change form, then this property must be set to true as the associations are located in the svc_ci_assoc table.

    When a business service is converted to an application service (as an example), all the levels included in the svc_ci_assoc table are considered at the time of conversion.
    change.conflict.populateimpactedcis If this property is set to true, then the ChangeCollisionHelper script include checks the configuration items that have been identified in the list of conflicts against the Application services mapping table (svc_ci_assoc) and also table (cmdb_ci_service) to check if there are any business services that are directly impacted.
    com.snc.change_request.refresh_impacted.event
    • When true, the process of refreshing the impacted services is done through an event. This process is run in the background and you will be notified through a message in Notify that the process has been complete.
    • When false, this is run in your session. As this is not run in background, there is no notification on completion.
    com.snc.change_request.populate_service_offering
    • When false, the related list is not populated or amended in any way.
    com.snc.change_request.populate_business_application
    • When true, the Business Applications related list is populated from the Impacted Services/CIs related list.
    • When false, the related list is not populated or amended.
    com.snc.change_request.refresh_impacted_services.message.show
    • When true, the Refresh impacted services is initiated message appears on the Change request form.
    • When false, the Refresh impacted services is initiated message doesn't appear.