Extending provided services
You can extend the capabilities of the integration's provided services by using the "extensionClass" argument, which contains services to use before and after invocation.
The provided components and parameters in the integration offer services and subservices,
so that customization can be implemented in the subservice. This two-part service strategy keeps the
JDA-facing services unchanged. In addition, you can use the extensionClass argument to run custom
logic before or after input XML conversion. For more information, see Components and parameters
in the Service Definition Framework.