Components installed with Service Mapping Plus

  • Release version: Zurich
  • Updated July 31, 2025
  • 2 minutes to read
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    Summary of Components installed with Service Mapping Plus

    Activating the Service Mapping Plus plugin in ServiceNow installs various components essential for its functionality. These components include scheduled jobs, tables, and system properties that support service mapping, machine learning (ML) features, and application service readiness monitoring.

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    Scheduled Jobs Installed

    • Update statistics for application service readiness dashboard: This job refreshes the data shown on the Application service readiness dashboard. It runs hourly and also triggers when the "Check Readiness" button is clicked, ensuring up-to-date visibility into application service health. The job will not run more frequently than every five minutes.

    Tables Installed

    Several new tables are introduced to support ML-related insights and training status tracking for service mapping:

    • ML-Related Service Status [mlrelatedservicestatus]: Stores information about ML-related issues in mapped application services.
    • Top ML Error Services [topmlerrserviceslist]: Maintains a list of up to 10 application services with the highest number of ML-related issues.
    • ML Dashboard Prerequisites [mldashboardprerequisites]: Contains links and status information for forms and tables needed for ML-based mapping setup.
    • AFP Training Status [afptrainingstatus]: Tracks the status of application fingerprint training.
    • Connection Suggestions Training Status [connectionsuggestiontrainingstatus]: Tracks the status of connection suggestion training.
    • ML P2P ETA Calculation Constants [samlp2petavalueslist]: Stores parameters used to calculate estimated time remaining for connection suggestion training.

    Properties Installed

    Several system properties are configured to control logging, mapping behavior, and performance limits:

    • sa.asc.loggerlevel: Controls logging level for application service candidates. Defaults to error, but can be set to debug to include detailed logs.
    • sa.topdown.enablecmdbbasedmapping: Enables use of CMDB-based mapping instead of MID Server. Default is false.
    • snsmscopedappapp.sa.unifiedmap.enabled: Enables access to the Unified Map feature in the Service Mapping workspace. Default is false.
    • sncmdbwsconfigproperty.unifiedmap.mapsearch.maxnodes: Limits the number of nodes shown on a Unified Map to maintain performance. Default is 250 nodes; increasing this may reduce performance.
    • snsmscopedapp.svcbytags.maxcandidatesperfamily: Limits the number of tag-based service candidates per family to 200, prioritizing the most recently updated CIs.
    • snsmscopedapp.maxvaliddiscoveryperiodindays: Sets how many days a host remains valid for candidate generation. Setting this to zero or negative disables the feature. Caution is advised to avoid removing all hosts accidentally.

    Practical Impact for ServiceNow Customers

    These components collectively enable enhanced service mapping capabilities, including ML-driven issue detection and readiness dashboard updates. Customers can expect improved visibility into application service health, automated updates on ML training status, and configurable control over mapping behavior and performance. Understanding these components helps in tuning the solution to fit operational requirements and ensuring optimal performance of the Service Mapping Plus application.

    Several types of components are installed with activation of the Service Mapping Plus plugin, including tables and scheduled jobs.

    Note:
    The Service Mapping Plus application is available in the ServiceNow Store.

    Scheduled jobs installed

    Scheduled job Description
    Update statistics for application service readiness dashboard Refreshes the information displayed on the Application service readiness dashboard. Runs hourly. In addition, runs when the Check Readiness button is selected on the Application service readiness dashboard. The system doesn't trigger this scheduled job sooner than five minutes since the last run.

    Tables installed

    Table Description
    ML-Related Service Status [ml_related_service_status] Contains the information about the ML-related issues in mapped application services.
    Top ML Error Services [top_ml_err_services_list] Contains the list of up to 10 application services containing the largest number of ML-related issues.
    ML Dashboard Prerequisites [ml_dashboard_prerequisites] Contains the links to forms and tables that require setting up for mapping based on ML and the status information for these configurations.
    AFP Training Status [afp_training_status] Contains the status of application fingerprint training.
    Connection Suggestions Training Status [connection_suggestion_training_status] Contains the status of connection suggestions.
    ML P2P ETA Calculation Constants [sa_ml_p2p_eta_values_list] Stores the information on how the system calculates the time remaining for connection suggestion training.

    Properties Installed

    Property Description
    sa.asc.logger_level Adds messages to the system log for the application service candidate.
    • Type: string
    • Default value: error
    • Other possible values: debug
    Note:
    Setting the property to debug displays both debug and error messages.
    sa.topdown.enable_cmdb_based_mapping This property enables CMDB-based mapping using the CMDB instead of the MID Server.
    • Type: boolean
    • Default value: false
    • Other possible values: true
    sn_sm_scoped_app_app.sa.unified_map.enabled Enables access to the Unified Map through the Service Mapping workspace.
    • Type: boolean
    • Default value: false
    • Other possible values: true
    sn_cmdb_ws_config_property.unifiedmap.map_search.max_nodes To ensure high performance, this property limits the number of nodes that can appear on a map.
    • Type: integer
    • Default value: 250

    Higher values might decrease performance because Unified Map loads all elements and related details when opened.

    Note:
    The unifiedmap.map_search.max_nodes property in the workspace-specific [sn_cmdb_ws_config_property] table replaces the deprecated sn_cmdb_ws.node.map.max.edge.count property.
    sn_sm_scoped_app.svc_by_tags.max_candidates_per_family
    Limits the maximum number of tag-based service candidates created for a single family. If the family definition includes more candidates, the most recently updated CIs take precedence. This value applies to all tag-based service families.
    • Type: integer
    • Default value: 200
    sn_sm_scoped_app.max_valid_discovery_period_in_days

    Sets the maximum number of days a host is considered valid when generating application service candidates. Setting this value to any non-positive integer deactivates this feature.

    Warning:
    If this value is set lower than or too close to the discovery cycle, it might result in the removal of all hosts. Consequently, no new candidates are created and existing candidates are deleted.
    • Type: integer
    • Default value: 0