Use the IsNullOrEmpty component

task brazil Updated Sep 10, 2026 1 min read use-stringutil-isnullempty.md

Determine whether the text is null or an empty string by using the IsNullOrEmpty component in RPA Desktop Design Studio.

Before you begin

Role required: none

About this task

You can configure the properties for the IsNullOrEmpty 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 IsNullOrEmpty component to the Design surface.
To configure the input fields, see Configure port properties.

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

Port type	Purpose of connection	Mandatory?
Data In (Text)	Takes the text that the component evaluates from a previously executed component.	Yes
Data Out (Boolean)	Returns the Boolean response to whether the text is null or empty and passes the value to the next component.	Yes
Control In	Connects to the Control Out port of one or more components.	Yes
Control Out	Connects to the Control In port of another component or the default end component.	No

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

Parent Topic:String utilities

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---
title: Use the IsNullOrEmpty component
description: Determine whether the text is null or an empty string by using the IsNullOrEmpty component in RPA Desktop Design Studio.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/integrate-applications/use-stringutil-isnullempty.html
release: brazil
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 IsNullOrEmpty component

Determine whether the text is null or an empty string by using the IsNullOrEmpty component in RPA Desktop Design Studio.

## Before you begin

Role required: none

## About this task

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

## Procedure

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

2.  Drag the IsNullOrEmpty component to the Design surface.

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

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

    |Port type|Purpose of connection|Mandatory?|
    |---------|---------------------|----------|
    |Data In \(Text\)|Takes the text that the component evaluates from a previously executed component.|Yes|
    |Data Out \(Boolean\)|Returns the Boolean response to whether the text is null or empty and passes the value to the next component.|Yes|
    |Control In|Connects to the Control Out port of one or more components.|Yes|
    |Control Out|Connects to the Control In port of another component or the default end component.|No|

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


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