How To Fix SY071 - Table index invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 071

• Message text: Table index invalid

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SY071 - Table index invalid ?

  The SAP error message SY071, which indicates "Table index invalid," typically occurs when there is an issue with the internal table index being used in ABAP programs. This error can arise due to various reasons, such as:
  Causes:
  
  Invalid Index Reference: The program is trying to access an index of an internal table that does not exist or is out of bounds.
  Empty Internal Table: The internal table may be empty, and an attempt is made to access an index.
  Incorrect Looping Logic: If the logic for looping through the internal table is flawed, it may lead to accessing an invalid index.
  Modification of Table During Loop: If the internal table is modified (e.g., rows added or deleted) while it is being looped through, it can lead to invalid index references.
  
  Solutions:
  
  
  Check Index Values: Ensure that the index being accessed is within the valid range of the internal table. Use conditions to check the index before accessing it.
  IF index >= 1 AND index <= lines(internal_table).
      " Access the internal table
  ENDIF.
  
  
  Validate Internal Table: Before accessing the internal table, check if it is empty.
  IF lines(internal_table) > 0.
      " Access the internal table
  ENDIF.
  
  
  Review Loop Logic: Ensure that the loop logic is correctly implemented and that you are not modifying the internal table while iterating over it. If you need to modify it, consider using a separate table or a different approach.
  
  
  Use Safe Access Methods: Instead of directly accessing the index, consider using the READ TABLE statement with the INDEX option, which can handle cases where the index might be invalid.
  READ TABLE internal_table INDEX index INTO variable.
  IF sy-subrc = 0.
      " Successfully read the entry
  ELSE.
      " Handle the case where the index is invalid
  ENDIF.
  
  
  Related Information:
  
  Debugging: Use the ABAP debugger to step through the code and monitor the values of the index and the internal table. This can help identify where the invalid index is being accessed.
  Documentation: Refer to SAP documentation for best practices on handling internal tables and indices in ABAP programming.
  Error Handling: Implement error handling to gracefully manage situations where an invalid index might be accessed, ensuring that the program does not terminate unexpectedly.
  
  By following these guidelines, you should be able to resolve the SY071 error and prevent it from occurring in the future.