Hi,<br><br>I&#39;ve got a problem upgrading OTRS from 2.2 to 2.3<br><span><span style="background-color: rgb(255, 255, 255); color: rgb(0, 0, 0);" title="">The problem occurs 
when i click on &quot;details&quot; </span></span><span><span style="background-color: rgb(255, 255, 255);" title="">to see ticket&#39;s history</span></span>.<br><br>I know that ITSM 1.1.2 is not compatible with OTRS 2.3... but i don&#39;t know how to upgrade without losing data<br>
How can i do it ?<br><br clear="all">Thank you<br><br>Manuel Fernández Panzuela<br>