Use the Join component

task australia Updated Sep 10, 2026 1 min read use-stringutil-join.md

Concatenate the elements of an array into a string by using the Join component in RPA Desktop Design Studio.

Before you begin

Role required: none

About this task

You can concatenate the elements of an array into a string by applying a specified separator such as dot, comma, or pipe. For example, if the string is {“Apple”, “Banana”, “Orange”} and separator is dot (.), then the concatenated string would be "Apple.Banana.Orange".

You can configure the properties for the Join component. For more information about these properties, see Properties of the String Utilities components.

Procedure

In the Toolbox pane, navigate to Utilities > String Utilities.
Drag the Join component to the Design surface.
To configure the input fields, see Configure port properties.

Connect the data and control ports of the Join component to the corresponding ports of the other components as described in the following table.

Parameter name	Description	Data Port type	Data type
StringArray	Specify a string array that you want to concatenate or use the string array from the previously executed component.	Data In	String[]
Separator	The text separator that joins the arrays such as dot (.), comma (,), or pipe (\|).	Data In	String
String	Returns concatenated string as an output that you can use in the next component.	Data Out	String

To test the component, under the DESIGN tab, click Run.

Parent Topic:String utilities

48 lines · 2.5 KB Wrap lines

---
title: Use the Join component
description: Concatenate the elements of an array into a string by using the Join component in RPA Desktop Design Studio.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/integrate-applications/use-stringutil-join.html
release: australia
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [String utilities, Utilities, Automation components, RPA Desktop Design Studio, Robotic Process Automation \(RPA\) Hub, Workflow Data Fabric]
---

# Use the Join component

Concatenate the elements of an array into a string by using the Join component in RPA Desktop Design Studio.

## Before you begin

Role required: none

## About this task

You can concatenate the elements of an array into a string by applying a specified separator such as dot, comma, or pipe. For example, if the string is \{“Apple”, “Banana”, “Orange”\} and separator is dot \(.\), then the concatenated string would be "Apple.Banana.Orange".

You can configure the properties for the Join component. For more information about these properties, see [Properties of the String Utilities components](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/integrate-applications/util-stringutil-prop.md).

## Procedure

1.  In the Toolbox pane, navigate to **Utilities** &gt; **String Utilities**.

2.  Drag the Join component to the Design surface.

3.  To configure the input fields, see [Configure port properties](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/integrate-applications/configure-input-port-properties.md).

4.  Connect the data and control ports of the Join component to the corresponding ports of the other components as described in the following table.

    |Parameter name|Description|Data Port type|Data type|
    |--------------|-----------|--------------|---------|
    |StringArray|Specify a string array that you want to concatenate or use the string array from the previously executed component.|Data In|String\[\]|
    |Separator|The text separator that joins the arrays such as dot \(.\), comma \(,\), or pipe \(\|\).|Data In|String|
    |String|Returns concatenated string as an output that you can use in the next component.|Data Out|String|

5.  To test the component, under the **DESIGN** tab, click **Run**.


**Parent Topic:**[String utilities](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/integrate-applications/string-utilities.md)