How To Fix WN150 - Layout already maintained at plant level

SAP Error Message - Details

• Message type: E = Error

• Message class: WN - Plant master data maintenance (integrated)

• Message number: 150

• Message text: Layout already maintained at plant level

What causes this issue?

You can either maintain layout data only on plant level or only on
department level.

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?

If you want to maintain the layout data on department level, you
need to delete the layout data on plant level.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WN150 - Layout already maintained at plant level ?

  The SAP error message WN150 ("Layout already maintained at plant level") typically occurs in the context of SAP's Warehouse Management (WM) or Inventory Management (IM) modules. This error indicates that a layout for a specific storage location or plant has already been defined, and the system does not allow for duplicate entries.
  Cause:
  
  Duplicate Layout Entry: The primary cause of this error is that a layout has already been created for the specified plant or storage location. SAP does not permit multiple layouts for the same plant/storage location combination.
  Incorrect Data Entry: Sometimes, the error may arise from incorrect data entry or an attempt to create a layout without first checking existing configurations.
  Configuration Issues: There may be issues in the configuration settings that lead to this error being triggered.
  
  Solution:
  
  
  Check Existing Layouts: 
  
  Navigate to the relevant transaction (e.g., LS01N for creating layouts) and check if a layout already exists for the specified plant and storage location.
  If a layout exists, you may need to modify it instead of creating a new one.
  
  
  
  Modify Existing Layout: 
  
  If you need to change the existing layout, you can do so by using the appropriate transaction (e.g., LS02N for changing layouts).
  Make the necessary adjustments to the existing layout as per your requirements.
  
  
  
  Delete Existing Layout: 
  
  If the existing layout is no longer needed, you can delete it using the transaction LS03N (display layout) and then proceed to delete it if you have the necessary authorizations.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or help files related to layout management in WM/IM for further guidance on managing layouts.
  
  
  
  Check Authorizations: 
  
  Ensure that you have the necessary authorizations to create or modify layouts in the system.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  LS01N: Create Layout
  LS02N: Change Layout
  LS03N: Display Layout
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or provide additional guidance related to layout management.
  User Roles: Ensure that the user role has the appropriate permissions to manage layouts in the system.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or functional team for further investigation, as there may be underlying configuration issues or system constraints that need to be addressed.