How To Fix GA621 - System error: Internal program data structures generated incorrectly

SAP Error Message - Details

• Message type: E = Error

• Message class: GA - Allocations

• Message number: 621

• Message text: System error: Internal program data structures generated incorrectly

What causes this issue?

During a transaction run, the SAP System determined that important
program data structures were generated incorrectly.

System Response

The transaction is terminated.

How to fix this error?

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GA621 - System error: Internal program data structures generated incorrectly ?

  The SAP error message GA621, which states "System error: Internal program data structures generated incorrectly," typically indicates an issue with the internal data structures of the SAP system. This error can arise from various causes, including:
  Causes:
  
  Data Corruption: There may be corruption in the database or in the internal data structures of the SAP application.
  Inconsistent Data: Inconsistencies in the data due to incomplete transactions or failed updates can lead to this error.
  Custom Code Issues: If there are custom developments or modifications in the system, they might not be handling data correctly, leading to this error.
  System Bugs: There could be bugs in the SAP software itself, especially if you are using an older version or have not applied the latest patches.
  Configuration Issues: Incorrect configuration settings in the system can also lead to this error.
  
  Solutions:
  
  Check for Notes and Patches: Look for SAP Notes related to the GA621 error in the SAP Support Portal. Applying relevant patches or updates may resolve the issue.
  Data Consistency Check: Run consistency checks on the affected data. You can use transaction codes like SE14 (Database Utility) or SE11 (Data Dictionary) to check for inconsistencies.
  Review Custom Code: If there are custom developments, review the code for any potential issues that could lead to incorrect data structure generation.
  System Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that could provide more context about the issue.
  Recreate Data Structures: In some cases, it may be necessary to recreate the affected data structures. This should be done with caution and ideally in a test environment first.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including any relevant logs and the steps that led to the error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE80 (Object Navigator), SE37 (Function Module), and SE38 (ABAP Program) for debugging and analyzing the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Backup and Recovery: Always ensure that you have a backup of your data before making significant changes or applying patches to avoid data loss.
  
  By following these steps, you should be able to diagnose and potentially resolve the GA621 error in your SAP system.