3280424 - ESI - SM20 error: RFC/CPIC logon failed, reason=1, type=F, method=R

Category               Installation error
Runtime Errors         CALL_FUNCTION_SIGNON_REJECTED

No authorization to log on to the target system (error code 1).

Installation error

The current program had to be terminated because of an error when
installing the SAP system.
An RFC (Remote Function Call) was sent with invalid user ID "SAPSYS      "
or client 000.

User "SAPSYS      " in client 000 is system "XYZ     " has attempted to submit
 an RFC
call using user ID "SAPSYS      " and client 000. (Note: In Release 4.0 and
 below,
no information is provided about the caller and the caller system).
to make an RFC call with user ID "SAPSYS      " and client 000 (note: In
 Release
4.0 and below, no information is provided about the caller and the
caller system).

*     necessary variables for class based exceptions
      DATA: l_root        TYPE REF TO cx_root.

      DO.
>>>>> CALL 'RfcImport' ID 'Type'        FIELD type
      ID 'SYXForm'     FIELD l_syxform
      ID 'SYXProg'     FIELD l_syxprog
      ID 'CLException' FIELD l_cbe
      ID 'IpAddr'      FIELD l_ipaddr
      ID 'Port'        FIELD l_port_int2
      ID 'Snc'         FIELD l_snc
      ID 'SameSystem'  FIELD l_same_system
      ID 'UconActive'  FIELD l_ucon_active
      ID 'CallerDest'  FIELD l_caller_dest
      ID 'CallerClient' FIELD l_caller_client
      ID 'CallerInst' FIELD l_caller_instance
      ID 'CallerType' FIELD l_caller_type
      ID 'CallerUser' FIELD l_caller_user
      ID 'CallerProgram' FIELD l_caller_program
      ID 'CallerSID' FIELD l_caller_sid
      ID 'CallerIPV6Flag' FIELD l_caller_ipv6_flag.

      l_port(4) = l_port_int2.