Configure Service Level Agreement \(SLA\) properties

task australia Updated Sep 10, 2026 5 min read t_ConfigureSLAProperties.md
Raw file servicenow.com

You can configure the SLA engine, logging, and repair properties based on the requirements within your organization.

Before you begin

Role required: admin

Procedure

  1. Navigate to All > Service Level Management > Properties.

  2. Select one of the following:

    • SLA Engine

      configure properties for the SLA engine.

    • SLA Logging

      configure logging properties for SLA Script Includes and logging output destination.

    • SLA Repair

      configure properties for the SLA Repair process.

Parent Topic:Service Level Management reference

SLA engine properties

Administrators can manage the SLA engine using SLA engine properties.

Navigate to Service Level Management > Properties > SLA Engine to view SLA engine properties.

Property name

Description

com.snc.sla.calculation.percentage

Maximum 'Actual elapsed percentage' value after which the 'SLA - update calculations' scheduled job will stop regularly calculating the SLA's time values. This is used to prevent 'long since breached' records from being unnecessarily updated. Setting to '0' will stop all calculations and leaving this blank will allow all SLAs to be calculated.

By default, this is set to 1,000%, so that recalculation stops after the breach is exceeded by a factor of 10.

  • Type: integer
  • Default value: 1000

com.snc.sla.maximum_duration

Maximum duration in days that is allowed in the SLA definition.- Type: integer

  • Default value: 1095

com.snc.sla.engine.version

Run the 2011 SLA engine (2010, 2011)

  • Type: choice list
  • Default value: 2011

com.snc.sla.engine.async

Run the 2011 SLA engine asynchronously after task insert or update operations.

  • Type: true | false
  • Default value: false

com.snc.sla.compatibility.breach

Enable compatibility with 2010 'breached' status of SLAs (default: false)

Only enable if you require the old way of showing breached status (in the stage value), for reporting purposes. Using only the 'breached flag' is preferred

  • Type: true | false
  • Default value: false

com.snc.sla.default_conditionclass

The name of the Script Include class used to evaluate SLA Conditions for the 2011 SLA engine (use to override with your own extension of the SLAConditionBase class).

  • Type: String
  • Default value: SLAConditionBase

com.snc.sla.workflow.run_for_breached

An update to a Task can result in an SLA being attached that is already breached. For example, when an incident that has already been open for a while is upgraded to high priority with a short resolution SLA.

By default, if there is a workflow specified in the SLA Definition, the workflow doesn't run when the Task SLA is already breached at the time it attaches.

Enable this property if you would like the workflow to run for a task SLA that is already breached when it is attaches to the task.

  • Type: true | false
  • Default value: false

com.snc.sla.flow.run_for_breached

An update to a task can result in an SLA being attached that is already breached. For example, when an incident that has already been open for a while is upgraded to high priority with a short resolution SLA.

By default, if there is a flow specified in the SLA Definition, the flow doesn't run when the task SLA is already breached at the time it attaches.

Enable this property if you would like the flow to run for a task SLA that is already breached when it attaches to the task.

This property isn't present in the base system. To use it, create it manually. Navigate to All > System Properties > All Properties, and then select New. Add the following details:

  • Name = com.snc.sla.flow.run_for_breached
  • Type = true | false
  • Value = true

The property value is read at run time by the TaskSLAFlowSNC script include.

com.snc.sla.calculate_planned_end_time_after_breach

Continue to re-calculate the "Planned End Time" of SLAs after they have breached

  • Type: true | false
  • Default value: false

Note: zboot customers do not have this property available in the SLA Engine Properties page.

com.snc.sla.calculation.use_time_left

Use field business_time_left to calculate breach time instead of business_percentage field. Using business_time_left is more accurate because the business_percentage field is rounded to 2 decimal places. This means that once the business percentage reaches 99.995%, it is recorded as 100%, and the task SLA is marked as breached.- Type: true | false

  • Default value: false

glide.sla.calculate_on_display

Recalculate Task SLA records when a Task form is displayed. This ensures that the task SLAs calculations are up to date but this may increase form load time.- Type: true | false

  • Default value: false

com.snc.sla.always_populate_business_fields

When set to true, business fields such as Business elapsed time are populated with the same values as in actual fields when no schedule is specified on the Task SLA.

If the property is false, the business fields will be empty when a Task SLA has no schedule.

  • Type: true | false
  • Default value: true for new instances, false for upgraded instances
## SLA logging properties

Administrators can configure SLA logging using SLA properties.

Navigate to Service Level Management > Properties > SLA Logging to view SLA logging properties.

The Logging level for... properties set logging levels for relevant script includes. This allows you to activate extra logging targeted at whenever that script include is invoked via a task SLA. For example, if you know of an issue with the TaskSLAworkflow script include, you can use the com.snc.sla.workflow.log property to enable logging on that script include. These properties are all set to Notice level by default.

SLA Logging Property

Description

com.snc.sla.task_sla_controller.log

Logging level for TaskSLAController

com.snc.sla.task_sla.log

Logging level for TaskSLA

com.snc.sla.condition.log

Logging level for SLAConditionBase

com.snc.sla.workflow.log

Logging level for TaskSLAworkflow

com.snc.sla.calculatorng.log

Logging level for SLACalculatorNG

com.snc.sla.repair.log

Logging level for SLARepair (SLA repair must be enabled to use this)

com.snc.sla.log.destination

Logging output destination.Select the log destination: either output to both the Database and node logs (the default), or output to node logs only.

Database and node logs (gs.log) are visible as system logs from ServiceNow, node logs (gs.print) only appear in log files.

### Logging levels

The following logging levels are available for the Logging level for... properties:

Level Name Description
Emerg Emergency Total failure.
Alert Alert System corruption of a database, for example.
Crit Critical Typically used for hardware errors, for example.
Err Errors Errors
Warning Warnings Warnings
Notice Notice Possible action required but not essential.
Info Informative No action required.
Debug Debugging Generally not used except for capturing everything for fault-finding.

Note: By default, logging levels are set to Notice

SLA repair properties

Administrators can manage the SLA repair function using system properties.

Navigate to Service Level Management > Properties > SLA Repair to view SLA repair properties.

Property name

Description

com.snc.sla.repair.enabled

Enable SLA repair. When enabled the Repair modules and UI Actions will be activated.- Type: true / false

  • Default value: true for new instances and false for upgraded instances
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