function synch_changes return boolean;
Determines whether there have been any user changes to an LDAP directory since the last synchronization by querying the LDAP change log records; if there are any changes, including creation, modification, and deletion, Synch_changes() stores the user attribute information in an attribute cache and raises the oracle.apps.global.user.change event to alert interested parties. The function connects to the LDAP directory specified in the global workflow preferences. One event is raised for each changed user.
If the function completes successfully, it returns TRUE; otherwise, if it encounters an exception, it returns FALSE.