This is a YaST module for registering a SUSE Linux Enterprise (SLE) product to the SUSE Customer Center or SMT (Subscription Management Tool).
The module is a part of SLE product installation or upgrade workflow.
A registered system will receive security updates and the functionality of the system can be extented via online extensions or modules.
See the wiki pages (https://github.com/yast/yast-registration/wiki) for more details.