https://userapps.support.sap.com/sap/support/knowledge/en/2901937
2901937 - RZ21 'Register a Component' results in short dump 'OBJECTS_OBJREF_NOT_ASSIGNED_NO' | SAP...
You use the new registration method, described in note 1304555, to register a component to be monitored: 1304555 - CCMS: New registration of monitored...
https://userapps.support.sap.com/sap/support/knowledge/en/1919875
1919875 - SoapFaultCode:5 CCMS__RegisterCentralSystem failed error in RZ21 | SAP Knowledge Base...
In the transaction RZ21 , while creating a new remote monitoring entry to register a satellite system in to the CEN, after inserting the requested information...