How To Fix S1209 - Data inconsistency has been detected (Reset the list again)

SAP Error Message - Details

• Message type: E = Error

• Message class: S1 - Statistik / SAP-Monitor

• Message number: 209

• Message text: Data inconsistency has been detected (Reset the list again)

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 S1209 - Data inconsistency has been detected (Reset the list again) ?

  The SAP error message S1209, which states "Data inconsistency has been detected (Reset the list again)," typically occurs in the context of SAP reporting or data retrieval processes. This error indicates that there is a mismatch or inconsistency in the data being processed, which prevents the system from displaying the requested information correctly.
  Causes:
  
  
  Data Inconsistency: The most common cause is that the underlying data in the database has become inconsistent. This can happen due to various reasons, such as:
  
  Incomplete data updates or transactions.
  Data corruption or issues during data migration.
  Concurrent updates that lead to temporary inconsistencies.
  
  
  
  Buffer Issues: Sometimes, the issue may arise from outdated or corrupted buffer data in the SAP system.
  
  
  Custom Code or Enhancements: If there are custom reports or enhancements, they may not handle data correctly, leading to inconsistencies.
  
  
  System Bugs: Occasionally, this error can be triggered by bugs in the SAP system itself, particularly if you are using an older version.
  
  
  Solutions:
  
  
  Reset the List: As the error message suggests, the first step is to reset the list. This can often resolve temporary inconsistencies. You can do this by navigating to the report or transaction and selecting the option to reset or refresh the data.
  
  
  Check Data Consistency: Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the relevant tables for inconsistencies. You may need to run consistency checks or reports specific to your module.
  
  
  Clear Buffers: If the issue is related to buffer inconsistencies, you can clear the buffers. This can be done using transaction SM12 (to delete lock entries) or SM21 (to check system logs for errors).
  
  
  Review Custom Code: If you suspect that custom code is causing the issue, review the code for any logic that may lead to data inconsistencies. Debugging the custom report may also help identify the problem.
  
  
  Check for System Updates: Ensure that your SAP system is up to date with the latest patches and updates. Sometimes, SAP releases notes or patches that address known issues.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. You can search for "S1209" or related keywords.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They may provide specific guidance based on your system configuration and version.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE16, SM12, and SM21 for data checks and troubleshooting.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  Documentation: Review SAP documentation related to the specific module or area where the error occurs for additional context and troubleshooting steps.
  
  By following these steps, you should be able to identify and resolve the cause of the S1209 error in your SAP system.