Cannot search for LDAP users
On the Manager Users page, you cannot search for individual users that originate from an LDAP directory. However, you can search for user groups from the LDAP directory, and see the users that are members of the groups.
Cause
In the LDAP directory, the field that you use to populate the Login properties field in the repository might contain NULL values, or non-unique values. NULL values and non-unique values are not permitted.
Resolution
Contact your LDAP administrator and verify that the field contains no NULL values, and that all values are unique. If the field contains NULL values, or values that are not unique, you need to use a different field to populate the Login properties field.
For example, if you specify cn as the login property and your LDAP administrator confirms that this field contains NULL values, you need to use a different field, that does not contain NULL values, as the login property.