About the subMapping element
A subMapping element has the following XML attributes:
- 
name: a required element specifying the name of the sub-attribute that is mapped. - 
ldapAttribute: a required element specifying the name of the LDAP attribute to which the SCIM sub-attribute maps. - 
transform: an optional element specifying a transformation to apply when mapping an attribute value from SCIM to LDAP and vice-versa. The available transformations are described later. The available transformations are described in Mapping LDAP Entries to SCIM Using the SCIM-LDAP API.