How To Fix SY149 - Control information for internal table destroyed

SAP Error Message - Details

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 149

• Message text: Control information for internal table destroyed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SY149 - Control information for internal table destroyed ?

  The SAP error message SY149 ("Control information for internal table destroyed") typically occurs when there is an issue with the internal table being used in an ABAP program. This error indicates that the control information for the internal table has been corrupted or is no longer valid, which can lead to unexpected behavior or crashes in the program.
  Causes:
  
  Memory Corruption: The internal table may have been corrupted due to improper handling of pointers or memory management in the ABAP code.
  Invalid Operations: Performing operations that are not allowed on internal tables, such as modifying the structure of the table while it is being processed.
  Incorrect Use of References: Using references to internal tables incorrectly, such as trying to access an internal table that has been freed or is out of scope.
  Concurrency Issues: If multiple processes are trying to access or modify the same internal table simultaneously without proper synchronization, it can lead to corruption.
  
  Solutions:
  
  Review Code: Check the ABAP code for any operations that might lead to corruption of the internal table. Ensure that you are not modifying the structure of the table while it is being processed.
  Use Proper Data Types: Ensure that the internal table and its associated structures are defined correctly and consistently throughout the program.
  Avoid Unnecessary Modifications: Minimize the number of modifications to the internal table during processing. If possible, create a copy of the table for processing.
  Debugging: Use the ABAP debugger to step through the code and identify where the corruption occurs. Look for any unusual behavior or unexpected values in the internal table.
  Check for Concurrency: If the program is running in a multi-threaded environment, ensure that access to the internal table is properly synchronized to prevent concurrent modifications.
  Error Handling: Implement error handling to gracefully manage situations where the internal table might become corrupted.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for best practices on handling internal tables and memory management.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address specific issues related to this error message.
  Community Forums: Engage with the SAP community forums or Stack Overflow to see if others have encountered similar issues and what solutions they found effective.
  
  By following these steps, you should be able to identify the cause of the SY149 error and implement a solution to resolve it.