How To Fix CNV_IUUC_REPLICATION391 - Error raised by replication listener (see log for details)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)

• Message number: 391

• Message text: Error raised by replication listener (see log for details)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION391 - Error raised by replication listener (see log for details) ?

  The SAP error message CNV_IUUC_REPLICATION391 typically indicates an issue with the replication listener in the context of SAP Landscape Transformation (SLT) or SAP Data Services. This error can occur during the data replication process, and it suggests that there is a problem that needs to be addressed for the replication to continue successfully.
  Possible Causes:
  
  Network Issues: There may be network connectivity problems between the source and target systems.
  Configuration Errors: Incorrect configuration settings in the SLT or replication setup can lead to this error.
  Database Issues: Problems with the source or target database, such as locks, performance issues, or schema changes, can trigger this error.
  Replication Listener Problems: The replication listener itself may be experiencing issues, such as being stopped or misconfigured.
  Data Conflicts: Conflicts in the data being replicated, such as primary key violations or data type mismatches, can also cause this error.
  
  Solutions:
  
  Check Logs: Review the detailed logs associated with the replication listener to identify the specific issue. The logs can provide more context about what went wrong.
  Network Connectivity: Ensure that there are no network issues between the source and target systems. Test the connection and resolve any connectivity problems.
  Configuration Review: Verify the configuration settings in the SLT setup. Ensure that all parameters are correctly set and that the replication model is properly defined.
  Database Health Check: Check the health of both the source and target databases. Look for locks, performance bottlenecks, or schema changes that might affect replication.
  Restart Replication Listener: If the replication listener is not running, try restarting it. This can sometimes resolve transient issues.
  Data Validation: Validate the data being replicated to ensure there are no conflicts or violations of constraints.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Refer to the official SAP documentation for SLT and replication processes for best practices and configuration guidelines.
  Support: If the issue persists after troubleshooting, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the CNV_IUUC_REPLICATION391 error effectively.