Open Source Document Management System | OpenKM

Hi guys!

I am very new to the OpenKM system. I found this application recently and I think it is just amazing. Unfortunately due to lack of documentation I am unable to resolve several issues I faced with. One of the issue is 'document expiration date' feature. First of all I would say that this feature is one of the requirement that I was asked for by my boss. The link http://www.openkm.com/en/openkm-documen ... ation.html shows us how to set up an expiration date for a particular document but I can not find it in OpenKM Community Edition 5.1. The page http://wiki.openkm.com/index.php/Document_expiration also did not help me. Can you advice me the direction or a page to read to resolve this issue?

Thank you in advance!

Basically all feature under professional extension are only available to openkm profesional customers. You can contract it or build your own extension, consider take a look http://wiki.openkm.com/index.php/Developer_Guide and http://wiki.openkm.com/index.php/Extension_Guide

Now i understand. So 'document expiration date' is a feature for a professional version of openkm only. Well, thank you for the links to developer's zone!
Best regards.