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# Filter the Activity Log to find who changed something

> Filter Mammoth's Activity Log by event, category, author and date range, search it, and narrow it to one dataset, View or automation's history.
>
> Applies to: Roles: The View Activity Log workspace permission. Where: Monitor › Activity Log

The [Activity Log](https://mammoth.io/docs/learn/automate/activity-log/) on **Monitor** > **Activity Log** lists every change in your workspace. Use the filters in its column headers, the search box, or a row's **View activity for this object** button to find one change, one person's actions or one item's history.

## Filter the Activity Log by event, category, author or date

Click a filter in a column header and select one or more values. You can combine filters, and they also apply when you export.

| Filter | How to use it |
| --- | --- |
| **Events** | Show only some actions, for example *Create dataset* or *Edit automation* |
| **Category** | Show one or more resource types: Automation, Connector, Dashboard, Data Retention, Dataset, Folder, Parameter, Pipeline, Project, View, Workspace |
| **Author** | Show one team member's actions |
| **Date range** | Change the time window. Defaults to **Last 30 days** |

Date range options: Today, Yesterday, Last 7 days, This week, Last week, Last 30 days, Last 3 months, Last 6 months, This quarter, Last quarter, Year to date (YTD), or Custom.

The search box above the table (**Search by name, dataset or project**) narrows the log to matching events.

### See the history of one dataset, View or automation

Each row's **View activity for this object** button limits the log to that object and shows an **Object** pill above the table; remove the pill to see everything. When the object is a dataset, an **Include views** checkbox adds the events of that dataset's Views. Export isn't available while an object is selected.

For one automation, you can also click ⋯ on its row in the Automations list, then **View activity**. See [Manage automations](https://mammoth.io/docs/learn/automate/manage/#see-who-changed-an-automation).

### Example: find who changed an automation last month

1. Click the **Category** filter and select **Automation**.
2. Click the **Events** filter and select **Edit automation**.
3. Set the date range to **Last 3 months**.
4. Read the **Author** and **Details** columns.

## Related

- [Activity log](https://mammoth.io/docs/learn/automate/activity-log/): what the log records and how to read it.
- [Export the Activity Log](https://mammoth.io/docs/learn/automate/export-activity-log/): save filtered results to CSV, XLSX or a dataset.
- [Manage automations](https://mammoth.io/docs/learn/automate/manage/): open one automation's activity from its row.

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Source: https://mammoth.io/docs/learn/automate/filter-activity-log.md · Updated: 2026-11-08