> For the complete documentation index, see [llms.txt](https://usermanual.ergonode.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://usermanual.ergonode.com/products/catalog/history.md).

# History

The history tab displays a table of changes made to the product, including adding, modifying, or deleting data. The table has seven columns:

* **Date:** The date and time when the change occurred.
* **Resource:** The name of the data entity affected by the change.
* **Identifier:** A unique identifier for the data entity.
* **Author:** The name of the user who performed the change, or the system if the change was automated. 
* **Source:** The location or method from which the change was initiated.
* **Event:** The type of change.
* **Message:** A brief description of the change, such as the new or old value of a field or the destination of a move.

<figure><img src="/files/IABktCquXTJvB7kzAlUA" alt=""><figcaption><p>Example of using filters on "Source" column</p></figcaption></figure>

The history tab allows users to view application history, filter the table by different criteria, and sort it by various columns. This helps users track changes, monitor activity, and troubleshoot issues in the application.


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