Modify schedule adherence and conformance formulas by using extension points

---
title: Modify schedule adherence and conformance formulas by using extension points
description: Configure and tweak the schedule adherence and conformance formulas using scripted extension points to customize them for your organization.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/employee-service-management/workforce-optimization-for-hr/modify-schedule-adherence-wfo-hr.html
release: brazil
product: Workforce Optimization for HR
classification: workforce-optimization-for-hr
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Setting up Scheduling for Workforce Optimization for HR, Configuring Workforce Optimization for HR, Workforce Optimization overview, HR Service Delivery, Employee Service Management]
---

# Modify schedule adherence and conformance formulas by using extension points

Configure and tweak the schedule adherence and conformance formulas using scripted extension points to customize them for your organization.

## Before you begin

Role required: sn\_hr\_wfo.admin

## About this task

Use the `sn_shift_planning.ScheduleAdherenceExtPt` extension point and create an implementation to configure the formulas. You can create multiple implementations. However, the implementation with the lowest order number is executed.

## Procedure

1.  Navigate to **All** > **System Extension Points** > **Scripted Extension Points**.

2.  Search for `sn_shift_planning.ScheduleAdherenceExtPt`.

3.  On the form banner, click the link **here** to edit the record.

4.  To create your extension point script, click **Create Implementation** in the related links.

5.  Modify the formulas for calculating the schedule adherence and conformance in the `getAdherencePercentage` and `getConformancePercentage` methods.

    \[Omitted image "extension-script-adherence-wfo-hr.jpg"\] Alt text: Extension Script for Schedule Adherence.

6.  Click **Update**.


## Result

The schedule adherence and conformance calculations are based on the formulas in the implementation.

**Parent Topic:**[Setting up Scheduling for Workforce Optimization for HR](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/employee-service-management/workforce-optimization-for-hr/setup-scheduling-wfo-hr.md)