As David points out, there are two LDAP utilities. Both are intended to be used in batch updates and/or imports of contact details from an LDAP-compliant directory. Both use the LDAP options in Service Desk Manager to find and access the directory.
pdm_ldap_sync will update an existing contact or contacts based on matching criteria that you set in the command.
pdm_ldap_import will import new contacts and also update existing contacts, again based on matching criteria.
If you have a large number of contacts already in your Service Desk installation, and you want to match them up with AD, then I'd suggest first running pdm_ldap_sync to match up the existing contacts with AD. Then start running pdm_ldap_import on a regular basis (e.g. as a scheduled task), to bring in new contacts from AD and keep the existing contacts in sync.
If the volume of contacts to be updated is large, when you start running pdm_ldap_sync you may wish to update the contacts in batches. That is the intention of the '-l' and '-c' arguments in the example commands that David and I have shown above. That also gives you the opportunity to verify that the sync is having the expected results before you commit to updating every contact.
Search https://docops.ca.com under CA Service Management for 'pdm_ldap_import' and 'pdm_ldap_sync' and you will find full details of the options and a few examples. Let us know if you have any trouble getting them to work.
Regards,
James