How To Fix L3800 - Entered storage unit & is a lower-level HU

SAP Error Message - Details

• Message type: E = Error

• Message class: L3 -

• Message number: 800

• Message text: Entered storage unit & is a lower-level HU

What causes this issue?

The storage unit you entered is a lower-level handling unit.
Within WM, only processing of higher-level handling units is possible.

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?

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 L3800 - Entered storage unit & is a lower-level HU ?

  The SAP error message L3800, which states "Entered storage unit & is a lower-level HU," typically occurs in the context of handling units (HUs) in warehouse management. This error indicates that the system is expecting a higher-level handling unit (HU) but has received a lower-level HU instead. 
  Cause:
  
  Hierarchy Violation: The handling unit you are trying to process is a lower-level HU (e.g., a pallet or box) that is part of a higher-level HU (e.g., a container or truck). The system expects you to work with the higher-level HU.
  Incorrect Input: The user may have mistakenly entered a lower-level HU when the system requires a higher-level HU for the operation being performed (e.g., picking, putaway, or inventory management).
  Configuration Issues: There may be issues with the configuration of handling units in the system, leading to incorrect handling unit relationships.
  
  Solution:
  
  Use the Correct HU: Ensure that you are entering the correct higher-level handling unit. Check the hierarchy of the handling units and select the appropriate one for the operation you are performing.
  Check HU Structure: Review the structure of the handling units in the system. You can use transaction codes like HU02 (Display Handling Unit) to view the details of the handling units and their relationships.
  Adjust Configuration: If the issue persists, it may be necessary to review and adjust the configuration settings related to handling units in the SAP system. This may involve working with your SAP Basis or Warehouse Management team.
  Consult Documentation: Refer to SAP documentation or help resources for more detailed information on handling units and their management.
  
  Related Information:
  
  Handling Units (HUs): In SAP, handling units are used to manage the physical handling of goods in logistics. They can be nested, meaning a higher-level HU can contain one or more lower-level HUs.
  Warehouse Management (WM): This error is often encountered in the context of SAP's Warehouse Management module, which deals with the management of stock in warehouses.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as HU02 (Display Handling Unit), LT03 (Create Transfer Order), and LT12 (Confirm Transfer Order) to troubleshoot and manage handling units effectively.
  
  If you continue to experience issues, consider reaching out to your SAP support team for further assistance.