Go to `Settings / Technical / Audit / Rules` to subscribe rules. A rule defines
which operations to log for a given data model.

.. image:: ../static/description/rule.png

Then, check logs in the `Settings / Technical / Audit / Logs` menu. You can
group them by user sessions, date, data model or HTTP requests:

.. image:: ../static/description/logs.png

Get the details:

.. image:: ../static/description/log.png

A scheduled action exists to delete logs older than 6 months (180 days)
automatically but is not enabled by default.
To activate it and/or change the delay, go to the
`Configuration / Technical / Automation / Scheduled Actions` menu and edit the
`Auto-vacuum audit logs` entry:

.. image:: ../static/description/autovacuum.png

In case you're having trouble with the amount of records to delete per run,
you can pass the amount of records to delete for one model per run as the second
parameter, the default is to delete all records in one go.