How To Fix L3399 - Storage unit & will be lost. Storage type & is not SU-managed

SAP Error Message - Details

• Message type: E = Error

• Message class: L3 -

• Message number: 399

• Message text: Storage unit & will be lost. Storage type & is not SU-managed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message L3399 - Storage unit & will be lost. Storage type & is not SU-managed ?

  The SAP error message L3399 indicates that a storage unit (SU) will be lost because the storage type in question is not managed for storage units. This typically occurs in warehouse management scenarios where the system is trying to process a storage unit in a storage type that does not support SU management.
  Cause:
  
  Storage Type Configuration: The storage type is configured in such a way that it does not support storage unit management. This means that the system does not track individual storage units in that particular storage type.
  Movement Type: The movement type being used may require SU management, but the storage type does not support it.
  Warehouse Process: The process being executed (like putaway or picking) may be trying to handle a storage unit in a storage type that is not set up for SU management.
  
  Solution:
  
  
  Check Storage Type Configuration:
  
  Go to the configuration settings for the storage type in the SAP system (Transaction code: SPRO).
  Navigate to the Warehouse Management settings and check the configuration for the specific storage type.
  Ensure that the storage type is set to manage storage units if that is required for your processes.
  
  
  
  Adjust Movement Types:
  
  Review the movement types being used in your warehouse processes. Ensure that they are compatible with the storage type settings.
  If necessary, change the movement type to one that is appropriate for the storage type.
  
  
  
  Change Storage Type:
  
  If the storage type cannot be changed to support SU management, consider using a different storage type that does support it for the operations you are trying to perform.
  
  
  
  Review Warehouse Processes:
  
  Ensure that the warehouse processes you are executing are appropriate for the storage type in question. If you are trying to perform operations that require SU management, make sure you are using the correct storage type.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SPRO for configuration, LT03 for transfer orders, or LT01 for putaway to troubleshoot and resolve the issue.
  Documentation: Refer to SAP documentation or help files for detailed information on warehouse management and storage unit management.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to storage unit management and error L3399.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to prevent the loss of the storage unit in your warehouse management processes.