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Release: Australia · Updated: 2026-03-12 · Official documentation · View source

Extension points in Field Service Management

Use extension points to customize various configurations.

In the application navigator, enter sys_extension_point.list and click Enter to view the extension points used in the Field Service Management application.

You can create multiple implementations for each extension point and provide an order number for each implementation. The implementation that has the lowest order number is executed.

Extension points are available for the following configurations:

  • Event type schedule entries
  • Appointment booking
Extension Point NameDescription
AgentEventUtilCustomize the logic for event type schedule entries.
AgentScheduleUtilCustomize the logic for computing event time-off spans.
Extension Point NameDescription
sn\_apptmnt\_booking.AppointmentBookingAvailabilityExtPointCustomize the logic to determine bookable appointment windows.
sn\_apptmnt\_booking.AppointmentBookingDaoExtPointCustomize the logic used to create or update an appointment record.
sn\_apptmnt\_booking.AppointmentBookingImplExtPointCustomize the logic to validate appointment data before an appointment is created.
sn\_apptmnt\_booking.AppointmentBookingUtilExtPointCustomize logic to create a parameter map of appointment data which will be used to create and update appointment records.
sn\_apptmnt\_booking.AppointmentRescheduleCancelExtPointCustomize logic used to determine whether appointments can be canceled or rescheduled.
sn\_apptmnt\_booking.AppointmentRESTHelperExtPointCustomize logic for retrieving a list of date and time periods available for appointment booking.
sn\_apptmnt\_booking.AppointmentRecommendationExtPointAllows other applications to integrate appointment booking slot recommendation.
sn\_apptmnt\_booking.AppointmentBookingLockingUtilExtPointAcquire and release locks in Appointment Booking workflow.
sn\_apptmnt\_booking.AppointmentBookingVariablesExtensionPointUtilized by the Appointment API and Booking API to fetch Catalog_id for the task.
sn\_apptmnt\_booking.AppointmentEnableUnifiedUIEnables the unified UI Calendar component for the specific task table extension.
sn\_apptmnt\_booking.AppointmentHolidayHelperExtCalculates the lead time by taking into account holidays as indicated by the consider_holidays_in_leadtime setting in Appointment Booking service configuration.
sn\_apptmnt\_booking.AppointmentLeadTimeCalculationDetermines whether to consider or ignore the lead time for rescheduling an appointment, based on the ignore_lead_time_on_reschedule setting in the Appointment Booking service configuration.
sn\_apptmnt\_booking.use\_unified\_appt\_widgetAllow other applications to use seismic appointment booking calendar.
sn\_apptmnt\_booking.AppointmentRecommendationExtPointCustomize the proximity and recommendation criteria for recommending appointments.
sn\_apptmnt\_booking.AppointmentSeismicUIFetches appointment booking configuration details based on the task table selected in the configuration.
Extension Point NameDescription
sn_fsm_adv_tmp.FSMTemplateMgmntExtPointCustomize the logic to enable the work order template to map information from source table to the appropriate fields in a work order.
sn_fsm_adv_tmp.FSMTableMapSourceIdentifierCustomize the logic to identify the source of a work order.
Extension Point NameDescription
OnsiteGeofenceConfigAllows you to define default values for the geofence radius and geofence unit fields in the work order task.
Extension Point NameDescription
Heatmap Gradient (sn_cmn_mo.HeatmapGradient)Allows you to define the color gradient of the heatmap.
Extension Point NameDescription
TerritoryIndicators(sn_fsm_tp.TerritoryIndicators)Allows you to define the key performance indicators (KPIs) to analyze the performance of the territory. The configured indicators appear in the contextual side panel of the Field Service Territory Planning console.
Extension Point Name 
sn\_fsm\_planned\_wm.PWMScheduleSuppressionExtensionPointCustomize the logic to validate when a schedule occurrence is suppressed.
sn\_fsm\_planned\_wm.PWMScheduleEffectivityExtensionPointCalculates the request dues, next run times, and the effectivity based on the configurations or rules.
sn\_fsm\_planned\_wm.PWMSourceRecordExtensionPointDerives the source specific fields like location, asset, CI, or IB based on the table associated to maintenance plan.
sn\_fsm\_planned\_wm.PlannedWorkManagementExeExtensionPointProcesses plan maintenance schedule outcomes like a work order.
sn\_fsm\_planned\_wm.PWMScheduleStartExtensionPoint

Customize the effective start date of work plan schedule for different assets.When you configure a planned work schedule to start on a calculated date, the schedule starts on the effective start date calculated by the custom implementation of this extension point.

Note: A default implementation is provided for this extension point. You can modify the default implementation as per you business requirements.

sn\_fsm\_planned\_wm.TaskPlanTemplateOutputTasksCustomize CRUD operations for the tasks, cases, or incidents created from task plan templates linked to a work plan.For example, for a business unit of your organization, you can customize the extension point to create cases for a work plan and link them to schedule occurrences through a new field in the Cases record. For another business unit, you can customize the extension point to create cases and link them to the schedule occurrences through a new table.

Related topics

Using extension points to extend application functionality

Using scripted extension points in server-side scripts

Using UI extension points in server-side UI macros

Using client extension points in client-side UI scripting