How To Fix CNV_IUUC_REPLICATION056 - Error during selection of Replication Application

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 056

• Message text: Error during selection of Replication Application

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION056 - Error during selection of Replication Application ?

  The SAP error message CNV_IUUC_REPLICATION056 typically occurs during the data replication process in SAP systems, particularly when using the SAP Landscape Transformation (SLT) Replication Server. This error indicates that there was an issue during the selection of the replication application, which can be caused by various factors.
  Causes:
  
  Configuration Issues: Incorrect configuration of the SLT replication settings can lead to this error. This includes issues with the source and target system connections.
  Data Model Changes: If there have been changes to the data model in the source system (like changes in tables or fields), it may cause the replication to fail.
  Authorization Issues: The user executing the replication may not have the necessary authorizations to access the required data.
  Network Issues: Connectivity problems between the source and target systems can also lead to replication errors.
  Performance Issues: If the system is under heavy load, it may not be able to process the replication requests in a timely manner.
  
  Solutions:
  
  Check Configuration: Review the SLT configuration settings to ensure that they are correct. Verify the connection settings between the source and target systems.
  Review Data Model: If there have been recent changes to the data model, ensure that the SLT configuration is updated accordingly. You may need to reinitialize the replication for affected tables.
  Check Authorizations: Ensure that the user executing the replication has the necessary authorizations to access the data in both the source and target systems.
  Network Connectivity: Check the network connectivity between the source and target systems. Ensure that there are no firewalls or network issues blocking the connection.
  Monitor System Performance: Use transaction codes like ST22 (Dump Analysis) and SM21 (System Log) to check for any performance issues or errors in the system logs that may be affecting replication.
  Restart Replication: Sometimes, simply restarting the replication process can resolve transient issues.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like LTRC (SLT Replication Monitor) to monitor the replication process and identify any issues.
  SAP Notes: Check for relevant SAP Notes that may provide additional insights or patches related to this error. You can search for notes using the SAP Support Portal.
  Documentation: Refer to the official SAP documentation for SLT for detailed guidance on configuration and troubleshooting.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.