As previously discussed, the LDAP naming service expects the DIT to be structured in a certain way. If you want, you can instruct the LDAP naming service to search in other locations than the default locations in the DIT by using service search descriptors (SSDs). Additionally, you can specify that different attributes and object classes be used in place of those specified by the default schema. For a list of default filters, use the following command:
ldaplist -v
If you use schema mapping, you must do so in a very careful and consistent manner. Make sure the syntax of the mapped attribute is consistent with the attribute it is mapped to. In other words, make sure that single-valued attributes map to single-valued attributes, that the attribute syntaxes are in agreement, and that mapped object classes have the correct mandatory (possibly mapped) attributes.