In addition to the SCIM SDK, PingDirectoryProxy Server provides a library called SCIM-LDAP, which provides facilities for writing custom transformations and more advanced mapping.

You can add the SCIM-LDAP library to your project using the following dependency:

Create your custom transformation by extending the com.unboundid.scim.ldap.Transformation class. Place your custom transformation class in a jar file in the server’s lib directory.
Note: The Identity Access API automatically maps LDAP attribute syntaxes to the appropriate SCIM attribute types. For example, an LDAP DirectoryString is automatically mapped to a SCIM string.