---
title: Add a parameter to a test step
description: Add a variable to a test step to hold a particular type of data when the test runs.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/application-development/automated-test-framework-atf/add-parameterized-value-to-step.html
release: brazil
product: Automated Test Framework \(ATF\)
classification: automated-test-framework-atf
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Parameterized tests, Building and running automated tests with the Automated Test Framework, Automated Test Framework \(ATF\) test building and execution, Automated Test Framework \(ATF\), Testing and debugging applications, Classic app development, Building applications]
---

# Add a parameter to a test step

Add a variable to a test step to hold a particular type of data when the test runs.

## Before you begin

-   [Create a parameterized test](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/application-development/automated-test-framework-atf/create-parameterized-test.md)
-   Role required: atf\_test\_admin, atf\_test\_designer, or admin

## About this task

**Note:** The Run Server Side Script test step is not supported in parameterized tests.

## Procedure

1.  Navigate to **All** > **Automated Test Framework** > **Tests**.

2.  Open a parameterized test.

3.  In the Test Steps related list, create a test step or open an existing step.

4.  Click \[Omitted image "rem-value-icon.png"\] Alt text: Picker icon and select a parameter to add it to a field.

    The parameter displays in the field.

    \[Omitted image "selected-parameter.png"\] Alt text: Selected parameters in the Incident form.


## Result

When the test runs, Automated Test Framework replaces the parameter with test run data.

## What to do next

[Add parameterized data sets](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/application-development/automated-test-framework-atf/add-parameterized-data.md).

**Parent Topic:**[Parameterized tests](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/application-development/automated-test-framework-atf/parameterized-tests.md)