Many of the Release Control objects are in special tables that are not directly accessible from within SBM. The Release Control SOAP and REST web services give you access to the objects in these tables.

IMPORTANT: This is not an official feature of Release Control. There is no documentation for usage. While we can answer basic questions, it is not "supported" as an official feature of the Release Control. Use at your own risk.

WARNING: The purpose of the web services are for the RLC framework to run and function. It is not designed for customer usage. Therefore, it could change during any version upgrade without notice. By using these web services, you are taking ownership of anything you build. If you build an application or integration using these web services, be sure to fully test them before any product upgrades as functionality, parameters, returned data etc could change without notice.

Full article: https://portal.microfocus.com/s/article/KM000005343