Hi Adres,
Currently AtoM does not support that level of audit logging or reporting on user actions.
There is a basic module for archival descriptions. When turned on in Admin > Settings, it will track creation and modification events of descriptions that happen via the user interface. However, it will not track what fields were altered, nor does it track what the actual changes were - just that X user modified Y record on Z date. Keep in mind that once turned on, this will only track new creation and modification events going forward - turning on the setting will not automatically add audit log history for existing records. See:
Once enabled, an administrator can then see all the edits a particular user makes by navigating to their profile:
Or, an administrator can also view the history of changes of a specific archival description by navigating to its view page, clicking the More button in the button block at the bottom of the page, and selecting "View modification history":
The reports listed in the right-hand sidebar (or "context menu") of a description's view page are more about the child records (such as item or file-level description summaries) or related physical storage. See:
Finally, AtoM does include some basic support for Google Analytics and Tag Manager. When configured properly, Tag Manager can be quite powerful for collecting analytics about site use. However, this is generally used more for understanding how public users are exploring your site, as it will track users by IP, and does not distinguish between public and logged in users. See:
Cheers,