How To Fix CNV_IUUC_REPLICATION099 - Logging tables truncated for mass transfer &1

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 099

• Message text: Logging tables truncated for mass transfer &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION099 - Logging tables truncated for mass transfer &1 ?

  The SAP error message CNV_IUUC_REPLICATION099 indicates that logging tables have been truncated during a mass transfer process. 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 target systems.
  Cause:
  The error occurs when the logging tables, which are used to track changes during the data replication process, are truncated. This can happen for several reasons:
  
  Exceeding Table Size Limits: The logging tables may have reached their maximum size limit, leading to truncation.
  Manual Intervention: Someone may have manually truncated the logging tables, either intentionally or accidentally.
  System Configuration: The system may be configured in a way that does not adequately handle the volume of data being replicated, leading to premature truncation.
  Performance Issues: High load or performance issues in the system can also lead to unexpected behavior, including truncation of logging tables.
  
  Solution:
  To resolve this issue, you can take the following steps:
  
  
  Check Logging Table Status: Verify the status of the logging tables to see if they have indeed been truncated. You can do this by checking the relevant database tables in the SLT schema.
  
  
  Increase Table Size: If the logging tables are reaching their size limits, consider increasing their size or adjusting the retention settings to allow for more data to be logged.
  
  
  Review Configuration: Check the SLT configuration settings to ensure they are appropriate for the volume of data being replicated. This includes settings related to logging and data transfer.
  
  
  Monitor System Performance: Monitor the performance of the system to identify any bottlenecks or issues that may be causing the truncation. Address any performance issues as necessary.
  
  
  Reinitialize Replication: If the logging tables have been truncated and you cannot recover the lost data, you may need to reinitialize the replication process. This involves stopping the current replication, clearing the relevant tables, and starting the replication again.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or updates related to this error message. There may be specific patches or recommendations provided by SAP.
  
  
  Contact SAP Support: If the issue persists or if you are unsure about the steps to take, consider reaching out to SAP Support for assistance.
  
  
  Related Information:
  
  SLT Documentation: Review the official SAP documentation for Landscape Transformation for detailed information on configuration and troubleshooting.
  Database Management: Familiarize yourself with database management practices to ensure that logging tables are properly maintained and monitored.
  Performance Tuning: Consider performance tuning for both the source and target systems to optimize data replication processes.
  
  By following these steps, you should be able to address the CNV_IUUC_REPLICATION099 error and ensure smooth data replication in your SAP environment.