How To Fix L3840 - Entered HU number has already been recorded

SAP Error Message - Details

• Message type: E = Error

• Message class: L3 -

• Message number: 840

• Message text: Entered HU number has already been recorded

What causes this issue?

The HU number you entered has already been assigned to this TO.

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?

Enter a HU number or have the system propose a new HU number.

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 L3840 - Entered HU number has already been recorded ?

  The SAP error message L3840, which states "Entered HU number has already been recorded," typically occurs when you are trying to process a Handling Unit (HU) that has already been assigned or recorded in the system. This can happen in various scenarios, such as during goods receipt, goods issue, or inventory management processes.
  Cause:
  
  Duplicate Entry: The Handling Unit number you are trying to enter has already been used in the system for another transaction.
  Incorrect HU Management: The system may not be properly managing the lifecycle of the Handling Units, leading to conflicts.
  System Configuration: There may be configuration settings in the SAP system that enforce unique HU numbers, and the entered number violates this rule.
  
  Solution:
  
  
  Verify HU Number: Check if the HU number you are trying to enter is indeed already recorded. You can do this by searching for the HU in the system using transaction codes like HU02 (Display Handling Unit) or HU03 (Display Handling Unit with History).
  
  
  Use a Different HU Number: If the HU number is already in use, you will need to use a different, unique HU number for your transaction.
  
  
  Check Transaction History: Review the transaction history of the HU to understand where and how it has been used. This can help in determining if it is still valid for the current operation.
  
  
  Clear or Reverse Previous Transactions: If the HU was incorrectly recorded in a previous transaction, you may need to reverse that transaction or clear the HU from its current status before reusing it.
  
  
  Consult with SAP Support: If you believe this error is occurring incorrectly or if you need further assistance, consider reaching out to your SAP support team or consulting SAP documentation for more detailed troubleshooting steps.
  
  
  Related Information:
  
  Handling Units (HUs): In SAP, HUs are used to manage and track physical items in logistics. Each HU can contain one or more materials and is assigned a unique identifier.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  HU02 - Display Handling Unit
  HU03 - Display Handling Unit with History
  LT03 - Transfer Order Confirmation
  MIGO - Goods Movement
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to Handling Units and error L3840.
  
  By following these steps, you should be able to resolve the error and continue with your operations in SAP.