> For the complete documentation index, see [llms.txt](https://athome-1.gitbook.io/athome-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://athome-1.gitbook.io/athome-docs/assets/tabs/locks.md).

# Locks

Locks prevent certain information from being modified during automatic inventory feedback. These locks are activated when a manual modification has been made.

## Lock a field

To lock a field, you need to modify the data of this field manually.

When a field is modified manually, a padlock appears next to the title :

## Unlock a field

* To unlock a field, go to the GLPI object on which the lock is located
* In the lock tab, click on the checkbox of the item to unlock
* Click on **Actions**
* Then **Delete permanently**
* And **Post**

The padlock is no longer present on the field and can now be modified by the automatic inventory.

All changes will be stored in the **historical** tab.