---
title: Apply or change a task constraint
description: Apply a constraint to control when an automatically scheduled task starts or finishes. Set the constraint type and the associated constraint date if required.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/it-business-management/project-management/change-task-constraint-project-management.html
release: australia
product: Project Management
classification: project-management
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 4
breadcrumb: [Starting a project, Using Project Management, Project Management, Project Portfolio Management, Strategic Portfolio Management]
---

# Apply or change a task constraint

Apply a constraint to control when an automatically scheduled task starts or finishes. Set the constraint type and the associated constraint date if required.

## Before you begin

Role required: it\_project\_manager

Verify that the task is set to automatic scheduling. Constraints apply only to automatically scheduled tasks.

## Procedure

1.  Navigate to **All** > **Project** > **Projects** > **All**.

2.  Open a project and select Gantt Chart view.

3.  Select the task for which you want to set a constraint.


**Parent Topic:**[Starting a project](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/it-business-management/project-management/t_CreateAProject.md)

**Related topics**  


[Create a project task from a project]()

[Create a parent-child relationship on the Project Task form]()

[Create a monetary benefit plan for a project]()

[Create a non-monetary benefit plan for a project]()

[Associate monetary and non-monetary benefit plans]()

[Create a project cost plan]()

[Recalculating costs of all resource plans in a project]()

[Create an expense line]()

[Create and manage waterfall projects]()

[Schedule a project from a start date]()

[Update a project]()

[Copy a project]()

[Assign a project schedule]()

[Create baseline of a project]()

[Create a milestone]()

[Activate project task email notifications]()

[Change the planned start date of a project]()

[Create a cost type definition]()

[Costing add-on in Project Management]()

[Generate labor costs]()

[Create a project status report]()

[Allocate budget to a project]()

[Migrate budget of active projects to Next Experience]()

[Migrate financial baselines of projects to Next Experience]()

[Task constraints](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/it-business-management/project-management/task-constraints-project-management.md)