How To Fix IUUC_CLOG_CORE189 - set to '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_CLOG_CORE - SLT Change Log Messages

• Message number: 189

• Message text: set to '&1'

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 IUUC_CLOG_CORE189 - set to '&1' ?

  The SAP error message IUUC_CLOG_CORE189 typically relates to issues with the Change Data Capture (CDC) mechanism in SAP Landscape Transformation (SLT) Replication. This error can occur when there are problems with the logging or processing of changes in the source system that are supposed to be replicated to the target system.
  Cause:
  The error message IUUC_CLOG_CORE189 with the placeholder '&1' usually indicates a specific issue related to the change log. Common causes include:
  
  Change Log Issues: The change log table may be corrupted or not properly maintained.
  Data Consistency: There may be inconsistencies in the data being replicated, such as missing entries or incorrect data types.
  Configuration Problems: Incorrect configuration settings in the SLT system can lead to replication issues.
  Performance Issues: High load on the source or target system can lead to timeouts or failures in processing the change logs.
  Database Issues: Problems with the underlying database, such as locks or resource constraints, can also trigger this error.
  
  Solution:
  To resolve the IUUC_CLOG_CORE189 error, you can follow these steps:
  
  
  Check Change Log Tables: Verify the integrity of the change log tables in the source system. Ensure that they are not corrupted and that they contain the expected data.
  
  
  Monitor SLT Configuration: Review the SLT configuration settings to ensure they are correctly set up for your environment. Pay attention to the connection settings, replication settings, and any filters that may be applied.
  
  
  Data Consistency Checks: Perform consistency checks on the data being replicated. Ensure that there are no missing or inconsistent entries in the source tables.
  
  
  Performance Monitoring: Monitor the performance of both the source and target systems. Check for any resource bottlenecks, such as CPU, memory, or disk I/O, that could be affecting the replication process.
  
  
  Restart Replication: If the issue persists, consider stopping and restarting the SLT replication process. This can sometimes clear transient issues.
  
  
  Check Logs: Review the SLT logs for more detailed error messages or warnings that can provide additional context about the issue.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or updates related to this error message. There may be patches or updates that address known issues.
  
  
  Consult SAP Support: If you are unable to resolve the issue, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including any logs and configuration settings.
  
  
  Related Information:
  
  SAP SLT Documentation: Review the official SAP documentation for Landscape Transformation to understand the architecture and configuration best practices.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Tuning: Consider performance tuning for both the source and target systems to ensure optimal replication performance.
  
  By following these steps, you should be able to diagnose and resolve the IUUC_CLOG_CORE189 error effectively.