> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://docs.groupalarm.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Organisation settings - Data retention period

By setting up a data retention period, old events can be completely removed from GroupAlarm after a specified period of time. To do this, set the retention period to the desired number of months. You can choose between 1 / 3 / 6 / 12 / 18 / 24 months. The deletion is documented in the audit log. By default, no period is selected, and no data is deleted.

||| ❗️ The deletion is irrevocable and affects all data associated with the event, such as alarms including feedback, PDF reports, incident logs and messenger rooms.

![](https://storage.crisp.chat/users/helpdesk/website/91fefd8b4b0ac000/datenaufbewahrungsfristorganis_1qzy1wu.png)