How To Fix L4121 - Storage unit type & should not be in storage bin type &

SAP Error Message - Details

• Message type: E = Error

• Message class: L4 - LVS inventory

• Message number: 121

• Message text: Storage unit type & should not be in storage bin type &

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message L4121 - Storage unit type & should not be in storage bin type & ?

  The SAP error message L4121 indicates that there is a mismatch between the storage unit type and the storage bin type in the warehouse management system. This error typically occurs when you attempt to put away or move a storage unit into a storage bin that is not compatible with the type of storage unit you are using.
  Cause:
  
  Storage Unit Type Mismatch: The storage unit type you are trying to use is not allowed in the specified storage bin type. Each storage bin type can have specific storage unit types that are permitted.
  Configuration Issues: The configuration settings in the Warehouse Management (WM) module may not be set up correctly, leading to this error.
  Incorrect Master Data: The master data for either the storage unit type or the storage bin type may be incorrectly defined.
  
  Solution:
  
  
  Check Storage Unit Type and Bin Type:
  
  Verify the storage unit type you are trying to use and the storage bin type you are attempting to move it to. Ensure that the storage unit type is allowed in that specific storage bin type.
  
  
  
  Review Configuration:
  
  Go to the configuration settings in the SAP system (Transaction code SPRO) and navigate to the Warehouse Management settings. Check the settings for storage types and storage bins to ensure that the correct storage unit types are assigned to the appropriate storage bin types.
  
  
  
  Adjust Master Data:
  
  If necessary, update the master data for the storage unit type or the storage bin type to ensure compatibility. This may involve changing the allowed storage unit types for a specific storage bin type.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation or help files related to Warehouse Management to understand the specific requirements and configurations for storage unit types and storage bin types.
  
  
  
  Testing:
  
  After making any changes, perform a test to ensure that the error no longer occurs when trying to move or put away the storage unit.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as LS01N (Create Storage Bin), LS02N (Change Storage Bin), or LS03N (Display Storage Bin) to manage storage bins.
  Warehouse Management Configuration: Familiarize yourself with the configuration paths in SPRO related to Warehouse Management, particularly those dealing with storage types and storage bins.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuration.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP Warehouse Management for further assistance.