How To Fix TPDA521 - Flush not possible - data concerning table key selected is inconsistent

SAP Error Message - Details

• Message type: E = Error

• Message class: TPDA - Debugger

• Message number: 521

• Message text: Flush not possible - data concerning table key selected 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TPDA521 - Flush not possible - data concerning table key selected is inconsistent ?

  The SAP error message TPDA521, which states "Flush not possible - data concerning table key selected is inconsistent," typically occurs during data processing operations, such as when trying to flush or update data in a table. This error indicates that there is an inconsistency in the data related to the specified table key, which prevents the operation from being completed successfully.
  Causes:
  
  
  Data Inconsistency: The most common cause is that the data in the database does not match the expected format or values for the specified key. This could be due to:
  
  Corrupted data entries.
  Missing or incomplete records.
  Referential integrity issues where related records are not properly linked.
  
  
  
  Concurrent Updates: If multiple processes are trying to update the same data simultaneously, it can lead to inconsistencies.
  
  
  Custom Code or Enhancements: If there are custom programs, user exits, or enhancements that manipulate the data, they might introduce inconsistencies.
  
  
  Transport Issues: If the data was transported from one system to another (e.g., from development to production), there might be issues with the transport that led to inconsistent data.
  
  
  Solutions:
  
  
  Data Validation: Check the data in the relevant tables for inconsistencies. You can use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to inspect the data.
  
  
  Consistency Check: Use SAP standard tools or custom programs to perform a consistency check on the affected tables. This may involve checking for missing foreign key relationships or invalid entries.
  
  
  Database Repair: If you identify corrupted data, you may need to repair it. This could involve deleting or correcting the problematic entries.
  
  
  Locking Mechanisms: Ensure that proper locking mechanisms are in place to prevent concurrent updates that could lead to inconsistencies.
  
  
  Review Custom Code: If there are custom developments, review the code to ensure it handles data correctly and does not introduce inconsistencies.
  
  
  Transport Review: If the issue arose after a transport, review the transport logs and ensure that all necessary objects were transported correctly.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11, SE16, and SE37 (Function Builder) for data inspection and debugging.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify the root cause of the TPDA521 error and implement a solution to resolve it.