How To Fix CNV_CDMC_CC004 - No connection available to partner system

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CDMC_CC - CDMC - Messages for the Control Center

• Message number: 004

• Message text: No connection available to partner system

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CDMC_CC004 - No connection available to partner system ?

  The SAP error message CNV_CDMC_CC004: No connection available to partner system typically occurs in the context of data migration or conversion processes, particularly when using the SAP Conversion Tools or during the execution of a data migration project. This error indicates that the system is unable to establish a connection to a partner system that is required for the data transfer or conversion process.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the partner system.
  Configuration Errors: The connection settings (such as RFC destination) may not be correctly configured in the SAP system.
  Partner System Down: The partner system may be down or not reachable due to maintenance or other issues.
  Authorization Issues: The user credentials used for the connection may not have the necessary authorizations to access the partner system.
  Firewall Restrictions: Firewalls or security settings may be blocking the connection to the partner system.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Ensure that the network connection between the SAP system and the partner system is active and stable. You can use tools like ping or traceroute to test connectivity.
  
  
  
  Verify RFC Destination:
  
  Go to transaction code SM59 in the SAP GUI and check the configuration of the RFC destination that points to the partner system. Ensure that the settings (such as target host, system number, and client) are correct.
  Test the connection from SM59 to see if it is successful.
  
  
  
  Check Partner System Status:
  
  Verify that the partner system is up and running. If it is down, coordinate with the relevant team to bring it back online.
  
  
  
  Review User Authorizations:
  
  Ensure that the user credentials used for the connection have the necessary authorizations to access the partner system. This may involve checking roles and permissions.
  
  
  
  Firewall and Security Settings:
  
  Check if there are any firewall rules or security settings that might be blocking the connection. Work with your network/security team to ensure that the necessary ports are open.
  
  
  
  Logs and Traces:
  
  Review system logs (transaction SM21) and traces (transaction ST22 for dumps, SLG1 for application logs) for any additional error messages that might provide more context about the issue.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Documentation: Review the documentation for the specific data migration or conversion tool you are using, as it may have specific requirements or troubleshooting steps.
  SAP Community: Consider searching or posting in the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the CNV_CDMC_CC004 error message.