How To Fix 50803 - Internal error: Index error when accessing internal table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: 50 - Messages in Package EEOB

• Message number: 803

• Message text: Internal error: Index error when accessing internal table &1

What causes this issue?

An error occurred when accessing the internal table <ZH>&V1&</> due to
an invalid table index.
A program error (&V2&/&V3&) probably exists. There may also be data
inconsistencies.

System Response

The system cannot complete your reqeust due to a program error.

How to fix this error?

Make a note of
The message text and the message number
The name of the internal table and the name of the module/form
The transaction/the report
and the steps that resulted in this error.
Send this information with a problem message to SAP.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 50803 - Internal error: Index error when accessing internal table &1 ?

  The SAP error message 50803, which states "Internal error: Index error when accessing internal table &1," typically indicates that there is an issue with accessing an internal table in the ABAP code. This error can occur due to various reasons, such as:
  Causes:
  
  Index Out of Bounds: The code is trying to access an index of the internal table that does not exist. For example, if the internal table has 5 entries, trying to access the 6th entry will trigger this error.
  Empty Internal Table: If the internal table is empty and the code attempts to access any index, it will result in this error.
  Incorrect Loop Logic: If there is a loop that modifies the internal table while iterating over it, it can lead to inconsistencies and index errors.
  Data Type Mismatch: If the internal table is not properly defined or if there is a mismatch in the expected data types, it can lead to access issues.
  
  Solutions:
  
  
  Check Index Access: Review the code to ensure that any access to the internal table is within the valid range. Use the LINES() function to check the number of entries before accessing an index.
  IF index <= lines(internal_table).
      " Access the internal table
  ELSE.
      " Handle the error
  ENDIF.
  
  
  Validate Internal Table: Before accessing the internal table, check if it is empty using the IS INITIAL statement.
  IF NOT internal_table IS INITIAL.
      " Access the internal table
  ELSE.
      " Handle the empty table case
  ENDIF.
  
  
  Debugging: Use the ABAP debugger to step through the code and monitor the state of the internal table and the index being accessed. This can help identify where the error occurs.
  
  
  Review Loop Logic: If you are modifying the internal table within a loop, consider using a separate table to store the results or use a different approach to avoid modifying the table you are iterating over.
  
  
  Error Handling: Implement error handling to gracefully manage situations where an index might be out of bounds. This can include logging the error or providing user feedback.
  
  
  Related Information:
  
  ABAP Documentation: Review the SAP documentation for internal tables and their handling in ABAP to understand best practices.
  SAP Notes: Check SAP Notes for any known issues related to this error message, as there may be specific patches or updates that address the problem.
  Community Forums: Engage with SAP community forums or support channels to see if others have encountered similar issues and how they resolved them.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to prevent it from occurring in the future.