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3405566 - Connection test of RFC destination with program XI_IDOC_DEFAULT_* failed with error 748 or 679

Symptom

RFC connection of RFC destination with program XI_IDOC_DEFAULT_* failed. 
The following error occurs: 

-------------------------
CPIC-CALL: 'ThSAPOCMINIT' : cmRc=19 thRc=748
Error (Msg DGW                  748 not found)
-------------------------

or

-------------------------
Error when opening an RFC connection (CPIC-CALL: 'ThSAPOCMINIT',
ERROR: Transaction program not registered
RETURN CODE: 679
-------------------------


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Environment

  • Operating System independent
  • Database independent

Product

ABAP platform all versions ; SAP NetWeaver all versions ; SAP S/4HANA all versions

Keywords

XI_IDOC_DEFAULT_; RFC destination; SM59; EGW748; 748; EGW 748 not found; return code 748; Registration of tp <program ID> not allowed; 679; TP not registered; gw/acl_mode; inboundRA; inbound RA.  , KBA , BC-CST-GW , Gateway/CPIC , Problem

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