The simplest way to handle this is to leverage Siteminder Advanced password services, when a user logs in force the change of a password past a certain date.
for your
Q1. Are there any common feature in IDM 14.1 to transform data for handling dormant account? we would like to know the best practice to configure in case of there are more applications integrate with IDM in the future.
Answer: No, this does not exist out of the box
Q2. Could anyone recommend the currently design for dormant account handlers in IDM 14.1 below? Any additional recommendation?
Answer: if your system is robust enough you may be able to leverage PX with a bulk task on a schedule.
Q. Can i use PX to transform the date format from AD and LDAP?
Answer: yes, but depends on complexity
Bill Patton