Hi hernanlo_,
In APM you view one of the relevant objects (legal document, asset, etc.) for which you want to trigger the email process and then you click "Configure On", please refer to below screen shot, and then click on the "manage events" icon shown next to the field that you want it to react upon, again please refer to screen shot below:
In the screen that opens, please refer to the screen shot below, provide an Event Name, select the Date Event from the Event Type drop-down list, select a number of days (-30 indicates 30 days before the expiration date in the field in this example), select CA IT Process Automation in the Event Provider drop-down list, and then you can select the email process that you should have created in IT PAM in advance:
Thanks,
John Sorensen