Debug actions on catalog item variables

---
title: Debug actions on catalog item variables
description: Analyze the client-side actions affecting the state and values of all variables. You can also get insights into the performance of each script working on the variables.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/servicenow-platform/service-catalog/debug-actions-on-catalog-item-variables.html
release: australia
product: Service Catalog
classification: service-catalog
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 2
breadcrumb: [Debugging Service Catalog, Service Catalog, Manage service capabilities, Extend ServiceNow AI Platform capabilities]
---

# Debug actions on catalog item variables

Analyze the client-side actions affecting the state and values of all variables. You can also get insights into the performance of each script working on the variables.

## Before you begin

Role required: admin, catalog\_admin, catalog\_manager, or catalog\_editor.

**Note:** You can perform this task with the catalog\_manager or catalog\_editor role only if you are assigned as the manager or editor of the catalog.

## About this task

The variable action logger displays the chronology of actions that happen on all variables of a catalog item before it is submitted. These actions can happen due to catalog client scripts, catalog UI policies, or catalog data lookups. This client-side logger does not store any data in the database. Also, the information displayed is applicable only while you work on the catalog form.

## Procedure

1.  Navigate to **All** > **Service Catalog** > **Catalog Administration** > **Enable Variable Action Logger**.

    The UI Page Customization Diagnostics logger is enabled.

    **Note:** Perform this step before you run the logger.

2.  Navigate to **Service Catalog** > **Catalog Definitions** > **Maintain Items**.

3.  In the Catalog Items list, select an item that you want to log ****.

4.  On the Catalog Item form, click **Try it**.

5.  On the catalog page for the item, right-click the header and select **Show Variable Action Logger**.

    **Note:** The variable logs are grouped by catalog UI policies, catalog client scripts, and data lookups.

    The following information is displayed in the Variable Action Logger window:

    -   Order in which scripts and actions are executed. When a new action is triggered from an existing action, the order of the new action is tracked at a sublevel under the order of the existing action. For example, the order of a new action triggered from step 1.2 is 1.2.1.
    -   Source of the action taken on a variable and the variable name.
    -   Details of the action taken on the variable.
    \[Omitted image "VariableActionLogger.png"\] Alt text: Screenshot for the Variable Action Logger window

6.  Review the results of the variable action logger.

<table id="choicetable_f5q_mwb_5bb"><tbody><tr><td id="d279010e180">

**Search**

</td><td>

To search for a variable or script, use the **Search** field.

</td></tr><tr><td id="d279010e192">

**Collapse All**

</td><td>

To collapse variable logs within a group, click **Collapse All**.

</td></tr><tr><td id="d279010e204">

**Expand All**

</td><td>

To expand variable logs within a group, click **Expand All**.

</td></tr><tr><td id="d279010e216">

**Filter**

</td><td>

To filter variable logs, click the Filter icon \(\[Omitted image "Filter.png"\] Alt text: Filter icon\) and select the required options.

</td></tr><tr><td id="d279010e231">

**Clear Logs**

</td><td>

To clear variable logs, click the Actions icon \(\[Omitted image "Actions.png"\] Alt text: Icon to clear variable logs\) and select **Clear Logs**.

</td></tr><tr><td id="d279010e250">

**Export to CSV**

</td><td>

To export the variable logs to a .csv file, click the Actions icon \( \[Omitted image "Actions.png"\] Alt text: Actions icon\) and select **Export to CSV**.

</td></tr><tr><td id="d279010e268">

**Print Logs**

</td><td>

To print variable logs, click the Actions icon \(\[Omitted image "Actions.png"\] Alt text: Actions icon\) and select **Print Logs**.

</td></tr></tbody>
</table>
**Parent Topic:**[Debugging Service Catalog](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/service-catalog/debugging-service-catalog.md)