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2174439 - Error when opening an RFC connection (CPIC-CALL: 'ThCPICArgs' Illegal CONVID )

Symptom

RFC Destination (normally, involved RFC is CALLTP_<OS>) fails; this can be checked by making a Connection Test on transaction SM59:
RFC.jpg

Work process trace file (dev_w<nr>) contains the following information:

   *** ERROR => ThCPICArgs: NiAddrToHost failed [thxxcpic.c   7402]
  A  RFC xxxx  CONVID xxxxxxxx
  A   * CMRC=0 DATA=0 STATUS=0 SAPRC=0 ThCPICArgs Illegal CONVID
  A  RFC> ABAP Programm: xxxxxx (Transaction: SM59)
  A  RFC> User: <user name>   (Client: <cln>)
  A  RFC> Destination: <RFC Name> (handle: 2, DtConId:     
 5550D4F5B2C906E0E10080000AC0A823, DtConCnt: 0, ConvId: ,)
  A  *** ERROR => RFC Error RFCIO_ERROR_SYSERROR in abrfcpic.c : 1792
  CPIC-CALL: 'ThCPICArgs'
  Illegal CONVID
  [abrfcio.c    9193]
 
Error shown can also be:

 Connection Error
 Error when opening an RFC connection (CPIC-CALL: 'ThCPICArgs' Illegal CONVID ).
 ERROR: hostname ‘hostname’  unknown
 LOCATION: SAP-Server <server_name>_<SID>_<nr> on host < server_name> (wp <nr>)
 DETAIL: NiPGetHostByAddr: ‘hostname’ not found
 Error Details CALL: getnameinfo
 


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Environment

RFC is defined as Type T (TCP/IP connections), and "Technical Settings" on "Activation type" tab is configured  as  "Start on Application Server"  or “Start on Explicit Host”:

RFC2.jpg

Keywords

KBA , BC-CST-NI , Network Interface , BC-MID-RFC , RFC , BC-NET , Network Infrastructure , Problem

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