3542665 - Runtime Error "CX_REST_CLIENT_EXCEPTION" when using SAP BTP Mobile Services App Creator for SAP Service and Asset Manager App creation

Following Runtime Error occurs when using App Creator to create SAP Service and Asset Manager application in SAP BTP Mobile Services. The error occurs specifically when opting for a direct connection to SAP BTP services from the back-end system.

• Category               ABAP programming error
  Runtime Errors         UNCAUGHT_EXCEPTION
  Except.                CX_REST_CLIENT_EXCEPTION
  ABAP: Program          CL_REST_HTTP_CLIENT===========CP
  Application Component  BC-MID-RST
• ----
  |Error analysis                                                                                    |
  |    An exception has occurred in class "CX_REST_CLIENT_EXCEPTION". As this                        |
  |     exception was not                                                                            |
  |    caught, a runtime error occurred. The reason for the exception                                |
  |    occurring was:                                                                                |
  |    HTTP client - communication error                                                             |
  |                                                                                                  |
  ----------------------------------------------------------------------------------------------------

• "Direct connect to hostname:port failed: NIECONN_REFUSED(-10)"

• SAP Service and Asset Manager (SSAM)
• Report /MERP/CORE_CPMS_APPCREATE_PROG
• transaction /MERP/CPms_appcreate

SAP Service and Asset Manager, Direct Connection, SAP BTP Services, Back-End System, Runtime Error, CX_REST_CLIENT_EXCEPTION, Network Communication, RFC Configuration, SAP Note 3320366, /MERP/CORE_CPMS_APPCREATE_PROG, /MERP/CPms_appcreate , KBA , MOB-APP-SAM , SAP Service and Asset Manager , MOB-APP-MAO , Mobile Application Integration Framework , Problem