Studio Web User Guide

DELIVERY:

Last updated Sep 22, 2025

Script

The Script activity uses JavaScript to enable custom data manipulation within your workflow. It integrates into API workflows, allowing you to:

Extract, format, and restructure API responses.
Aggregate and consolidate data.
Perform calculations and data transformations.
Standardize data formats for later steps.

Use the Script activity to refine nested or fragmented API responses before passing them to subsequent workflow activities.

Known limitations

Limited to data manipulation and cannot directly perform external API requests.
Runs within the workflow execution context, allowing access only to existing workflow data and step outputs.

Using the Script activity

To add a Script activity to your workflow:

On your API workflow designer canvas, select the plus (+) icon. The Add activity menu appears.
Select Script.
In the Properties panel, expand the Expression editor, then write your JavaScript logic in the Code panel.
Test the workflow to execute the activity and generate output fields for later use.

For optimal usage, use the following recommendations:

Use the return statement to efficiently structure JSON outputs.
Use .map() to transform arrays into structured objects.
Use Autopilot expression generator to automatically generate JavaScript based on workflow context, minimizing manual coding effort.

Script activity example

The following example consolidates data from multiple workflow steps into a structured JSON object using the Script activity. This approach is especially helpful with Workday APIs, which often require several endpoint calls to retrieve complete datasets, such as employee details, managers, and direct reports.

The following image shows the original workflow, which is going to be consolidated into a JSON object with the Script activity.

Open the Debug configuration window, then paste and save the following JSON syntax:

{
  "first_name": "Betty",
  "last_name": "Liu"
}{
  "first_name": "Betty",
  "last_name": "Liu"
}

On your API workflow designer canvas, add a Script activity.

Open the Expression editor and paste the following implementation:

return {

    // Details on the worker
    worker: {
        name: $currentItem.descriptor,
        email: $currentItem.person.email
    },

    // Details of their manager
    manager: {
        name: $context.outputs.Workers_3.content.descriptor,
        email: $context.outputs.Workers_3.content.person.email
    },

        // Details for their direct reports
    reports: $context.outputs.Workday_REST_HTTP_Request_4.content.data.map(report => ({
        name: report.descriptor,
        email: report.primaryWorkEmail
    }))
}return {

    // Details on the worker
    worker: {
        name: $currentItem.descriptor,
        email: $currentItem.person.email
    },

    // Details of their manager
    manager: {
        name: $context.outputs.Workers_3.content.descriptor,
        email: $context.outputs.Workers_3.content.person.email
    },

        // Details for their direct reports
    reports: $context.outputs.Workday_REST_HTTP_Request_4.content.data.map(report => ({
        name: report.descriptor,
        email: report.primaryWorkEmail
    }))
}