When you use TDMS RFC management (process step) to maintain RFC connections for a TDMS transfer package, during the synchronization the system issues the error message Other terms
CNVMBT 112 :
"Could not change password of RFC Destination &1."
In addition, runtime errors of the type
'SYSTEM_CORE_DUMPED' may occur in the affected system if you use a TDMS destination in the affected system.
TDMS, CNVMBT 112 , CNVMBT-112, passwords, RFC Management Reason and Prerequisites
The TDMS control system has SAP Basis release level 700 and the affected remote systems (TDMS sender or receiver system) have a lower release than this. During the synchronization, the system automatically creates the RFC destinations (in accordance with their definition in the control system) in the relevant remote systems. Solution
For unknown reasons, if the above error occurs, the system does NOT adjust the definition in the affected remote system in accordance with the Basis release level that is there. Therefore, when you use the destination, the above-mentioned runtime error may occur, or the error message that is mentioned above may occur in the TDMS RFC.
https://service.sap.com/sap/support/notes/1096641 (SAP Service marketplace login required)