---
title: "List Builder Overview"
slug: "list-builder-overview"
updated: 2026-06-26T16:44:23Z
published: 2026-06-26T16:44:23Z
canonical: "documentation.decisions.com/list-builder-overview"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.decisions.com/llms.txt
> Use this file to discover all available pages before exploring further.

# List Builder Overview

## Overview

The **Create List** **Builder** is a step that is used to create or manipulate **List** **Data**. This List Data is specified on the step by defining the desired **ListType**. Upon running Create List Builder, the step provides users access to additional steps that may be used to append and further edit the List through way of various **Methods**. The following document demonstrates how to utilize a Create List Builder step within a Flow to create a List.

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## Example

The following example demonstrates how to utilize the Create List Builder step to create a String List. To do so:

1. From a **Designer** **Project**, [create a new Flow](/v7/docs/creating-your-first-flow-2).
2. From the **Flow** **Designer**, add a **Create** **List** **Builder** step from **T****oolbox > DATA > LIST > LIST BUILDER** to the workspace
3. From the **Properties** tab of the Create List Builder step, under [**SETTINGS] > ListType**, select the desired option (for this example **String** **[Text]**). ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1779129199100.png)
4. Back in the Flow Designer, navigate to **Toolbox > [DATA IN FLOW] > LIST > [METHODS]**.
5. Add an **Add Item to List** step after the Create List Builder step.
6. From the Properties of the **List** **Add** step, **Constant** map the desired String value to the **New** **It****em** field.
7. For the **Original List** input, select the StringListBuilder Type, and select the All Items field. ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1782492200359.png)

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## Debug

1. From the **Flow** **Designer**, select the **Debug** link from the top Action bar. Then click START DEBUGGING. The new item will be added to the list.![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1782492248250.png)