> For the complete documentation index, see [llms.txt](https://help.auxalia.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.auxalia.com/plant-tools/plantexpresstools/how-to-use/change-log.md).

# Change Log

The Change Log feature will log any changes made to properties.

It is currently only available for P\&ID drawings. It will log any changes of Engineering Itemns, Non Engineering Items, Pipe Line Groups and Signal Line Groups.

The change history can also be views in the Properties Palette within PlantDataManager.

The Change Log stored the history in the **\[ProjectFolder]\ACPLantTools\ACPChangeLog.dcf** database. If you are using SQL Server you will find this database on SQL Server. The changes are then stored in the **ChangeLog** table.

Remark: Do not tamper with the database, table or its content. This may lead to the lass of functionality.

Table of Content:

* [How to use Videos](/plant-tools/plantexpresstools/how-to-use/update-fromto/how-to-use-videos.md)
* [Setup](/plant-tools/plantexpresstools/how-to-use/plantprojectmanager/usage/spec-sheets-category-node/spec-update-settings.md)
* [Usage](/plant-tools/plantexpresstools/how-to-use/assemblies/usage.md)