Logs purge
Configure how long to keep historical log entries base on the type of the entry or globally.

The log purge is done by the PurgeLogs automatic action.
We advise you to purge your logs so as not to overload your instance and avoid the keep all option.
You can choose the first option Change all to setup all entries at once.
Each field allows you to delete, keep or delete after a certain period (between 1 and 120 months).
General
Add/update relation between items
Delete relation between items
Add the item
Delete the item
Restore the item
Update the item
Comments
Last update
Plugins : retains or not the history of a plugin. For example, in the advanced dashboard, the history tab could be cleared.
Equipments refused by rules log : Rules can be put in place to refuse equipment when an employee is working remotely, for example. This history can be cleared.
An item is defined as anything that could be linked to a GLPI object (a contract, a document, a computer, etc.)
Software
Installation/uninstallation of software on items: add a new software
Installation/uninstallation versions on software: adding a new version of an existing software package to a GLPI object. For example, adding version 7.4 of PowerShell to a computer that already has PowerShell installed
Add/Remove items from software versions: This applies to
Parc>Software. Multiple versions of the same software can coexist; here, we use OneDrive as an example. This option will clear the history of added versions fromParc>Software(without deleting the version itself, of course)

Financial and administrative information
Add financial information to an item
Users
Add/remove profiles to users
Add/remove groups to users
User authentication method changes
Deleted user in LDAP directory
Components
Add component: adding a new component not currently in the database
Update component: updating a component
Disconnect a component: removing the connection between an existing component and another GLPI object
Connect a component: connecting an existing component to a GLPI object (for example, connecting an existing PCIe port in the database to a computer)
Delete component: removing a component
All sections
Purge all log entries
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