How To Fix CNV_IUUC_REPLICATION169 - Cannot stop Load/Replication. The source system is being updated.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 169

• Message text: Cannot stop Load/Replication. The source system is being updated.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION169 - Cannot stop Load/Replication. The source system is being updated. ?

  The SAP error message CNV_IUUC_REPLICATION169 indicates that a replication or load process cannot be stopped because the source system is currently being updated. This typically occurs in scenarios involving data replication, such as when using SAP Landscape Transformation (SLT) for real-time data replication from a source system to a target system.
  Cause:
  
  Ongoing Updates: The source system is actively processing updates (inserts, updates, or deletes) that are being replicated. The replication process cannot be halted while these updates are in progress to ensure data consistency.
  Locking Mechanism: The replication process may be locked due to ongoing transactions in the source system, preventing it from being stopped.
  Configuration Issues: There may be configuration settings in the SLT or the source system that are causing the replication to be tightly coupled with ongoing updates.
  
  Solution:
  
  Wait for Completion: The simplest solution is to wait until the ongoing updates in the source system are completed. Once the updates are finished, you should be able to stop the replication process.
  Check for Long-Running Transactions: Use transaction codes like SM50 or SM66 to monitor active processes in the source system. Identify any long-running transactions that may be causing the issue and address them if necessary.
  Review SLT Configuration: Ensure that the SLT configuration is set up correctly. Check for any settings that might be causing the replication to be overly sensitive to ongoing updates.
  Stop Updates Temporarily: If possible, consider pausing or stopping the updates in the source system temporarily to allow the replication process to be stopped. This should be done with caution and in accordance with business processes.
  Consult Logs: Check the SLT logs for any additional error messages or warnings that might provide more context about the issue. This can help in diagnosing the root cause.
  Restart SLT Replication: If the issue persists, you may need to restart the SLT replication process after ensuring that there are no ongoing updates.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLT, SM50, SM66, and SLG1 for monitoring and troubleshooting.
  SAP Notes: Check SAP Notes related to SLT and replication issues for any known issues or patches that may address the problem.
  Documentation: Review the official SAP documentation for SLT to understand best practices for managing replication and handling errors.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.