---
title: "Using Runtime Parameter Variables"
description: "Orchestrator allows you to pass runtime variables into the script. In our example, the folderName custom parameter has been added recently, and it is required to specify a default value for it."
canonical: "https://helpcenter.veeam.com/docs/vro/userguide/using_parameter_variables.html"
breadcrumb: "User Guide > Managing Custom Scripts to Veeam Recovery Orchestrator > Using Runtime Parameter Variables"
dateModified: "2026-08-26"
---

# Using Runtime Parameter Variables

Orchestrator allows you to pass runtime variables into the script.

In our example, the *folderName* custom parameter has been [added recently](uploading_scripts.md#script_parameters), and it is required to specify a default value for it. To set a custom variable as the default value, do the following:

1. Switch to the **Administration** page.
2. Navigate to **Recovery Steps**.
3. In the **Steps** column, select the script step and click **Edit**. 
4. In the **Step Editor** window, click **Add** in the **Script parameters** section.
5. In the **Add Script Parameter** window, do the following:

   1. Enter a name for the new parameter. The maximum length of the location name is 128 characters; the following characters are not supported: * : / \\ ? " < > | .
   2. From the **Parameter type** drop-down list, select *Text / Macro*.
   3. In the **Default value** field, click **Choose** and do the following in the **Set Default Text / Macro** window:

      1. Set the **Show macros** toggle to *On* 
      2. From the list of available variables, double-click the value that you want to assign to the parameter, and click **Apply**.

   4. Click **Apply**.

6. To save changes made to the script, click **Save**.

[![Editing Custom Step Settings](images/parameter_variables.png "Editing Custom Step Settings")](images/parameter_variables.png){.toggle scale=70}

For more information on parameter variables that you can pass into a script, see [Appendix A. Recovery Plan Steps](parameter_variables.md).