How To Fix CNV_IUUC_REPLICATION309 - Changing the source destination for the initial load failed

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 309

• Message text: Changing the source destination for the initial load failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION309 - Changing the source destination for the initial load failed ?

  The SAP error message CNV_IUUC_REPLICATION309 typically occurs during the initial load of data in the context of SAP Landscape Transformation (SLT) replication. This error indicates that there was a failure when attempting to change the source destination for the initial load.
  Causes:
  
  Configuration Issues: There may be misconfigurations in the SLT setup, such as incorrect source or target system settings.
  Network Issues: Connectivity problems between the source and target systems can lead to this error.
  Authorization Problems: The user executing the replication may not have the necessary authorizations to perform the operation.
  Data Consistency: If there are inconsistencies in the data or if the data model has changed, it can lead to replication failures.
  Replication Settings: Incorrect settings in the replication configuration, such as the wrong table or schema being selected.
  
  Solutions:
  
  Check Configuration: Review the SLT configuration settings to ensure that the source and target systems are correctly defined. Verify the connection parameters and ensure they are correct.
  Network Connectivity: Ensure that there are no network issues between the source and target systems. Test the connection to confirm that it is stable.
  User Authorizations: Verify that the user has the necessary authorizations to perform the replication tasks. Check roles and permissions in both the source and target systems.
  Data Model Verification: Ensure that the data model has not changed unexpectedly. If there have been changes, you may need to adjust the replication settings accordingly.
  Review Logs: Check the SLT logs for more detailed error messages that can provide additional context on what went wrong. The logs can often point to specific issues that need to be addressed.
  Restart Replication: If the issue persists, consider stopping and restarting the replication process. Sometimes, a fresh start can resolve transient issues.
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  SLT Documentation: Review the official SAP documentation for SLT to ensure that all steps in the setup and configuration have been followed correctly.
  Community Forums: Engage with the SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  If the problem continues after trying the above solutions, it may be necessary to contact SAP support for further assistance.