---
title: "Track web data changes. Track item history in Mozenda."
slug: "item-history-tracking"
description: "You can track the web data changes each time the agent runs so you can view added, changed, or removed items."
tags: ["follow", "report", "record", "data", "save", "modified", "editing"]
updated: 2025-06-10T15:51:39Z
published: 2025-06-10T15:51:39Z
canonical: "help.mozenda.com/item-history-tracking"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.mozenda.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Track item history

You can track the data changes each time the agent runs so you can view added, changed, or removed items.

          Note

          

This feature is specific to Enterprise License accounts only.

**Store data from the last run** To store data from the last agent run:

In the Web Console:

1. Select **Agents** > **Agent**.
2. Select the name of an agent.
3. Select ![](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/gears%281%29.png)
4. Select **Harvesting**.
5. Select **Behavior**
6. Select **Store Item History**.
7. Select **SAVE**.
8. Select **All items ever found** from the drop-down on the toolbar to see previous results.

          Note

          

If you don't enable Store Item History, only the most recent data is retained.

          Note

          

If you do enable history, we recommend using no more than *2 bookmarks* in most cases to ensure *optimal performance* and to *minimize storage cost*.

![](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/Bookmark%20Track%20History-2.JPG)

**View modified items**

In the Web Console:

1. Select **Agents** > **Agent**.
2. Select the name of an agent.
3. Select **DATA**.
4. Select **Most recent completed run** from the drop-down on the toolbar.
5. Select **SHOW** and select the items you would like to see to compare your most recent run to the full data collection.

![](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/trackitemhistory.png)

          Note

          

Make sure you add a *Unique Field in Fields* to track the changes between runs. The changes can be exported or published for you to review by selecting *Most recently completed run* from the publishing window.

**Mark unique fields**

In the Web console:

1. Select **Agents** > **Agent**.
2. Select the name of an agent.
3. Select **Fields**.
4. Select the field(s) you want to mark as unique. (Fields like URL, SKU, Model, etc.)
5. If you want to mark multiple fields as unique, you need to select each of them.
6. Select **Set unique fields**.
7. Select **Continue**.