---
title: Set system properties for scheduler
description: Set the scheduler cool-off period system property \( sn\_ap\_apm.exception.engine.scheduler\_cool\_off\_period \) to define the time interval between invoice exception engine processing cycles.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/source-to-pay-operations/accounts-payable-operations/set-system-properties-for-scheduler.html
release: australia
product: Accounts Payable Operations
classification: accounts-payable-operations
topic_type: task
last_updated: "2026-03-12"
reading_time_minutes: 1
keywords: [APO, Accounts Payable Operations, Scheduler, invoice exception, invoice processing, engine processing cycles, admin, System property]
breadcrumb: [Components installed with Accounts Payable Invoice Processing, Install Accounts Payable Invoice Processing, Configure, Accounts Payable Operations, Finance and Supply Chain]
---

# Set system properties for scheduler

Set the scheduler cool-off period system property \(`sn_ap_apm.exception.engine.scheduler_cool_off_period`\) to define the time interval between invoice exception engine processing cycles.

## Before you begin

Role required: admin

## Procedure

1.  Navigate to **All**.

2.  Search `sys_properties_list.do` and open the system property.

3.  Search for `sn_ap_apm.exception.engine.scheduler_cool_off_period` and open the system property.

    The system property `sn_ap_apm.exception.engine.scheduler_cool_off_period` opens as a record. The **Value** field displays the default value as 240. You can edit the record in editing mode.

4.  In the **Value** field, you can enter the value according to your choice.

5.  Select **Update**.