---
sourceDocument: Zurich Strategic Portfolio Management
sourceDocumentLink: https://www.servicenow.com/docs/r/zurich/it-business-management

 Release :

    - zurich

ft:locale :

    - en-US

ft:publication_title :

    - Zurich Strategic Portfolio Management

ft:clusterId :

    - itbm

bundleId :

    - itbm

workflow :

    - Technology


---

# Using Work breakdown structure (WBS) - Legacy

# Using Work breakdown structure (WBS) - Legacy {#ariaid-title1}

* Release version: Zurich
* 
* Updated July 31, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

The work breakdown structure (WBS) is a hierarchical representation of all the tasks in
your project.  
Important:  
Work breakdown structure (WBS) is being prepared for future deprecation. It will be hidden and no longer available for installation but will continue to be supported. For details, see the [Deprecation Process \[KB0867184\]](https://hi.service-now.com/kb_view.do?sysparm_article=KB0867184) article in the Now Support knowledge base. Use new [Project Workspace](https://www.servicenow.com/docs/AVd2b8Fx6FVQmdk6Wh~f2Q "ServiceNow Project Workspace helps project managers to plan and manage projects from a central location.") with enhanced UI to help you efficiently manage your projects.

Use the WBS to get a quick overview of the entire project, including the tasks and subtasks
nested in the project. The Gantt chart gives you a similar overview using graphical elements like
lines and bars to show dependencies and lengths of tasks. The WBS is more data-driven, presenting
a wide variety of task information in expandable rows.

You can view the WBS on the planning console, or as a related list on the Project or Project
Task form. See [Open the project planning console](https://www.servicenow.com/docs/~ZA14tvEMU~puG3rDntocg "Access the planning console to perform the planning for the project.") or [Access the WBS as a related list](https://www.servicenow.com/docs/TLqT0m7GkN_w5WCI1SOo2Q "You can view the WBS as a related list on both the Project and Project Task forms.").  
When the WBS is viewed as a related list on the Project or Project task form, several important columns from the table appear by default. {#c_WorkBreakdownStructure__tbl_ImportantColumnsFromTheProjectTaskTable__entry__2}

| Column Name | Description |
|-|-|
| WBS | The number of the task in the WBS hierarchy. The first task in the hierarchy is assigned the number 1. Subtasks increment the number in the tenth place, such as 1.1 and 1.2. The numbers are read-only. |
| WBS Order | A number that represents the task in relation to its parent. The first subtask under a task has an WBS Order of 1, and the next task 2. If you edit a number, all tasks are moved accordingly after you refresh the list. |
| Number | The task ID number, which should not be changed. |
[Table 1. Important columns]

{#c_WorkBreakdownStructure__tbl_ImportantColumnsFromTheProjectTaskTable}

Other useful information also appears by default, such as the description and percentage complete. You can personalize the list like any other list by selecting the personalize list icon (![personalize list icon]()) and selecting the columns you want to view.
* **[Access the WBS as a related list](https://www.servicenow.com/docs/TLqT0m7GkN_w5WCI1SOo2Q)**   
  You can view the WBS as a related list on both the Project and Project Task forms.

**Related tasks**   

* [Access the WBS as a related list](https://www.servicenow.com/docs/TLqT0m7GkN_w5WCI1SOo2Q "You can view the WBS as a related list on both the Project and Project Task forms.")