How To Fix CLUNDO011 - System error: log header is inconsistent

SAP Error Message - Details

• Message type: E = Error

• Message class: CLUNDO - Message Class for Undo Functions in Classification

• Message number: 011

• Message text: System error: log header is inconsistent

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CLUNDO011 - System error: log header is inconsistent ?

  The SAP error message CLUNDO011: System error: log header is inconsistent typically indicates an issue with the consistency of the log data in the system. This error can occur in various contexts, often related to the use of change logs or when performing operations that involve data consistency checks.
  Causes:
  
  Database Corruption: The log header may be corrupted due to database issues or improper shutdowns.
  Inconsistent Data: There may be inconsistencies in the data that the system is trying to process, leading to a mismatch in the log header.
  Transport Issues: If there were issues during a transport of changes, it could lead to inconsistencies in the log.
  System Upgrades or Patches: Sometimes, after an upgrade or patch, inconsistencies can arise if the system was not properly updated.
  
  Solutions:
  
  Check Database Consistency: Use transaction codes like DB02 or DBACOCKPIT to check for database inconsistencies and perform necessary repairs.
  Rebuild Logs: If the logs are corrupted, you may need to rebuild them. This can often be done through specific SAP transactions or tools designed for log management.
  Review Transport Logs: If the error occurred after a transport, review the transport logs for any errors or warnings that could indicate what went wrong.
  System Restart: Sometimes, a simple restart of the SAP system can resolve transient issues.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that address this specific error. There may be patches or updates available that can resolve the issue.
  Consult SAP Support: If the issue persists, it may be necessary to contact SAP Support for further assistance, especially if it involves deeper database or system-level issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), ST22 (Dump Analysis), and SLG1 (Application Log) to gather more information about the error.
  Backup and Recovery: Ensure that you have a recent backup of your database before attempting any repairs or changes.
  System Monitoring: Implement regular monitoring of your SAP system to catch issues early and maintain data integrity.
  
  Always ensure that you have the necessary authorizations and backups before performing any corrective actions in your SAP environment.