How To Fix ISSR_TP641 - Error reading from an internal table

SAP Error Message - Details

• Message type: E = Error

• Message class: ISSR_TP - Message Class for Statutory Reporting

• Message number: 641

• Message text: Error reading from an internal table

What causes this issue?

An error occurred while reading from internal table &V1& in method &V2&
(class &V3&): The system cannot determine a data record for value &V4&.

System Response

The system terminates data processing.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ISSR_TP641 - Error reading from an internal table ?

  The SAP error message ISSR_TP641, which indicates "Error reading from an internal table," typically arises when there is an issue with data retrieval or processing within an internal table in an ABAP program. This can occur due to various reasons, such as:
  Causes:
  
  Empty Internal Table: The internal table being accessed may be empty, leading to an attempt to read data that does not exist.
  Index Out of Range: The program may be trying to access an index that is out of the bounds of the internal table.
  Data Type Mismatch: There may be a mismatch in the expected data types when reading from the internal table.
  Corrupted Data: The internal table may contain corrupted or unexpected data that cannot be processed correctly.
  Logical Errors in Code: There may be logical errors in the ABAP code that lead to incorrect handling of the internal table.
  
  Solutions:
  
  
  Check Internal Table Content: Before reading from the internal table, ensure that it is populated with data. You can use the DESCRIBE TABLE statement to check the number of entries.
  DATA: lv_count TYPE i.
  DESCRIBE TABLE it_table LINES lv_count.
  IF lv_count = 0.
      " Handle the case where the table is empty
  ENDIF.
  
  
  Validate Index Access: Ensure that any index used to access the internal table is within the valid range. Use a conditional check before accessing the table.
  IF index >= 1 AND index <= lines( it_table ).
      " Safe to read from it_table[index]
  ELSE.
      " Handle the out-of-bounds case
  ENDIF.
  
  
  Debugging: Use the ABAP debugger to step through the code and inspect the internal table's contents and the logic leading up to the error. This can help identify where things are going wrong.
  
  
  Error Handling: Implement error handling to gracefully manage situations where the internal table is empty or an index is out of range. This can prevent the program from crashing and provide meaningful feedback.
  
  
  Review Data Types: Ensure that the data types used in the internal table and the variables accessing it are compatible. Mismatches can lead to runtime errors.
  
  
  Check for Corruption: If the internal table is populated from a database or external source, ensure that the data being loaded is valid and not corrupted.
  
  
  Related Information:
  
  ABAP Documentation: Review the official SAP ABAP documentation for best practices on handling internal tables.
  SAP Notes: Check SAP Notes for any known issues related to this error message. Sometimes, specific versions of SAP may have bugs that are documented in SAP Notes.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed.
  
  By following these steps, you should be able to diagnose and resolve the ISSR_TP641 error effectively.