How To Fix LR021 - Error when accessing an internal table

SAP Error Message - Details

• Message type: E = Error

• Message class: LR - CATS: Cross-Application Time Sheet

• Message number: 021

• Message text: Error when accessing an internal table

What causes this issue?

An error has occurred when accessing an internal table.

System Response

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

How to fix this error?

Contact the SAP hotline.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LR021 - Error when accessing an internal table ?

  The SAP error message LR021 indicates that there is an issue when accessing an internal table in an ABAP program. This error typically arises when the program attempts to access an internal table that is either not defined, not initialized, or has been incorrectly manipulated.
  Causes of LR021 Error
  
  Uninitialized Internal Table: The internal table has not been properly initialized before it is accessed.
  Incorrect Indexing: The program may be trying to access an index of the internal table that does not exist (e.g., accessing an index that is out of bounds).
  Table Declaration Issues: The internal table may not be declared correctly, or the structure of the table may not match the expected format.
  Empty Table Access: Attempting to read from an internal table that is empty without checking its contents first.
  Data Type Mismatch: The data type of the internal table may not match the expected data type in the program logic.
  
  Solutions to LR021 Error
  
  
  Check Initialization: Ensure that the internal table is properly initialized before accessing it. You can use the CLEAR statement to initialize the table.
  CLEAR it_table.
  
  
  Validate Index Access: Before accessing an index of the internal table, check if the index is valid. You can use the DESCRIBE TABLE statement to get the number of entries in the table.
  DATA: lv_index TYPE i.
  DESCRIBE TABLE it_table LINES lv_index.
  IF lv_index > 0.
      READ TABLE it_table INDEX 1 INTO lv_variable.
  ENDIF.
  
  
  Review Table Declaration: Ensure that the internal table is declared correctly with the appropriate structure. For example:
  TYPES: BEGIN OF ty_structure,
           field1 TYPE string,
           field2 TYPE i,
         END OF ty_structure.
  DATA: it_table TYPE TABLE OF ty_structure.
  
  
  Check for Empty Tables: Before performing operations on the internal table, check if it is empty.
  IF it_table IS NOT INITIAL.
      " Perform operations
  ENDIF.
  
  
  Data Type Consistency: Ensure that the data types used in the internal table match the expected types in the program logic.
  
  
  Related Information
  
  Debugging: Use the ABAP debugger to step through the code and identify where the error occurs. Check the state of the internal table at various points in the program.
  Documentation: Refer to SAP documentation for more details on internal tables and their usage in ABAP programming.
  Community Forums: Check SAP Community or other forums for similar issues and solutions shared by other developers.
  
  By following these steps, you should be able to identify and resolve the LR021 error in your SAP ABAP program.