How To Fix CNV_IUUC_REPLICATION039 - Open connection for mass transfer with ID &1 failed. &2

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 039

• Message text: Open connection for mass transfer with ID &1 failed. &2

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_REPLICATION039 - Open connection for mass transfer with ID &1 failed. &2 ?

  The SAP error message CNV_IUUC_REPLICATION039 indicates that there was a failure in opening a connection for mass transfer with a specific ID. This error is typically associated with the SAP Landscape Transformation (SLT) replication process, which is used for real-time data replication from source systems to SAP HANA or other target systems.
  Causes:
  
  Network Issues: There may be network connectivity problems between the source and target systems.
  Configuration Errors: Incorrect configuration settings in the SLT system or the source system can lead to connection failures.
  Authorization Issues: The user or service account used for the connection may not have the necessary authorizations.
  Resource Limitations: The target system may be experiencing resource constraints (e.g., memory, CPU) that prevent new connections from being established.
  Database Issues: The database on either the source or target system may be down or experiencing issues.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the source and target systems. You can use tools like ping or telnet to test connectivity.
  Review Configuration Settings: Verify the configuration settings in the SLT system, including the connection parameters for the source and target systems. Ensure that the mass transfer ID is correctly configured.
  Check Authorizations: Ensure that the user or service account used for the connection has the necessary authorizations to perform the replication tasks.
  Monitor System Resources: Check the resource utilization on the target system. If the system is under heavy load, consider optimizing performance or scaling resources.
  Database Health Check: Ensure that both the source and target databases are up and running without issues. Check for any error logs or alerts in the database systems.
  Restart SLT Replication: If the issue persists, consider restarting the SLT replication process or the SLT server itself.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like LTRC (SLT Replication Monitor) to monitor the replication status and identify any issues.
  Logs: Check the SLT logs for more detailed error messages that can provide additional context about the failure.
  SAP Notes: Look for relevant SAP Notes that may address known issues related to this error message. You can search the SAP Support Portal for specific notes related to SLT and replication errors.
  
  If the problem continues after trying the above solutions, it may be beneficial to contact SAP support for further assistance, providing them with detailed logs and error messages for analysis.