How To Fix L4520 - Internal table sorted incorrectly

SAP Error Message - Details

• Message type: E = Error

• Message class: L4 - LVS inventory

• Message number: 520

• Message text: Internal table sorted incorrectly

What causes this issue?

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

System Response

How to fix this error?

INCLUDE 'SY_VE_HOLEN' OBJECT DOKU ID TX LANGUAGE E

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message L4520 - Internal table sorted incorrectly ?

  The SAP error message L4520: Internal table sorted incorrectly typically occurs in the context of SAP Logistics, particularly in the handling of internal tables that are expected to be sorted in a specific order. This error can arise during operations such as inventory management, order processing, or any other logistics-related transactions where sorted data is crucial for processing.
  Cause:
  The error is generally caused by one of the following issues:
  
  
  Incorrect Sorting: The internal table that is being processed is not sorted according to the expected key fields. This can happen if the sorting logic is not applied correctly before the table is used in a function or method that requires sorted data.
  
  
  Data Integrity Issues: There may be inconsistencies in the data being processed, leading to unexpected sorting results.
  
  
  Custom Code: If there is custom ABAP code involved, it may not be handling the sorting correctly, leading to this error.
  
  
  Changes in Data Structure: If there have been recent changes to the data structure or the sorting criteria, the existing code may not be compatible with the new structure.
  
  
  Solution:
  To resolve the L4520 error, you can take the following steps:
  
  
  Check Sorting Logic: Review the code where the internal table is populated and ensure that it is sorted correctly using the SORT statement in ABAP. Make sure that the sorting is done based on the correct key fields.
  SORT it_table BY field1 field2.
  
  
  Debugging: Use the ABAP debugger to inspect the internal table before the point where the error occurs. Check the contents of the table and verify that it is sorted as expected.
  
  
  Data Validation: Ensure that the data being processed is valid and does not contain duplicates or unexpected values that could affect sorting.
  
  
  Review Custom Code: If the error is occurring in custom code, review the logic to ensure that it adheres to the expected sorting requirements.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues related to this error message.
  
  
  Consult Documentation: Review the documentation for the specific transaction or function module where the error occurs to understand the expected data structure and sorting requirements.
  
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to logistics, such as inventory management (MM), sales and distribution (SD), or production planning (PP).
  ABAP Development: If you are a developer, familiarize yourself with the ABAP programming language, especially the handling of internal tables and sorting mechanisms.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to identify the cause of the L4520 error and implement a solution to resolve it.