Hi Damien,

Sorry for late response.
You can find information to install and configure OpenLDAP at http://www.openldap.org/

And documentation to configure openLDAP with CPBM is at : http://support.citrix.com/proddocs/topic/cloudportalbusiness-14/ccpb-configureldap.html

As of now we do not support migration of existing users from MySQL DB to LDAP.

MySQL DB has all the user details entered while user registration/creation .
But only following attributes are saved in LDAP:
* Username
* Password
* First name
* Last name
* Email address
* Telephone number

Please let us know if you want any more info.

Thanks,
Manish