How To Fix CNV_CDOP_CC016 - Connection to the RFC Destination &1 could not be established.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CDOP_CC - CDOP - Messages for the Control Center

• Message number: 016

• Message text: Connection to the RFC Destination &1 could not be established.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CDOP_CC016 - Connection to the RFC Destination &1 could not be established. ?

  The SAP error message CNV_CDOP_CC016 indicates that there is an issue with establishing a connection to a Remote Function Call (RFC) destination. This error typically arises during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools.
  Causes:
  
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system.
  Network Issues: There may be network connectivity problems between the SAP system and the target system.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  Firewall Restrictions: Firewalls may be blocking the connection to the RFC destination.
  System Downtime: The target system may be down or not reachable.
  
  Solutions:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Verify the settings for the RFC destination (e.g., connection type, target host, system number, client, user, and password).
  Test the connection using the "Connection Test" button.
  
  
  
  Network Connectivity:
  
  Ensure that the network connection between the two systems is active and stable.
  Use tools like ping or telnet to check connectivity to the target system.
  
  
  
  User Authorizations:
  
  Verify that the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  Check the user roles and profiles in transaction SU01.
  
  
  
  SAP Gateway Configuration:
  
  Ensure that the SAP Gateway is running on both the source and target systems.
  Check the gateway logs for any errors.
  
  
  
  Firewall Settings:
  
  Check the firewall settings to ensure that the required ports for RFC communication are open.
  Consult with your network administrator if necessary.
  
  
  
  System Availability:
  
  Confirm that the target system is up and running.
  Check for any scheduled maintenance or downtime.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: To manage and test RFC destinations.
  SMGW: To monitor the SAP Gateway.
  SU01: To manage user accounts and authorizations.
  
  
  
  Logs and Traces:
  
  Check the system logs (transaction SM21) for any related error messages.
  Use transaction ST22 to check for dumps that may provide more context.
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC connections.
  
  
  By following these steps, you should be able to diagnose and resolve the CNV_CDOP_CC016 error effectively. If the issue persists, consider reaching out to SAP support for further assistance.