How To Fix L1140 - WM unit of measure is not maintained for the material

SAP Error Message - Details

• Message type: E = Error

• Message class: L1 - Message handling for WM master data

• Message number: 140

• Message text: WM unit of measure is not maintained for the material

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message L1140 - WM unit of measure is not maintained for the material ?

  The SAP error message L1140, which states "WM unit of measure is not maintained for the material," typically occurs in the Warehouse Management (WM) module when the system cannot find a defined unit of measure for a specific material in the context of warehouse operations. This can prevent various warehouse activities, such as goods movements, from being executed.
  Cause:
  The primary cause of this error is that the Warehouse Management (WM) unit of measure for the material has not been defined in the system. This can happen if:
  
  The material master data is incomplete.
  The WM-specific data for the material has not been maintained.
  The material is newly created and has not yet been configured for WM.
  
  Solution:
  To resolve this error, you need to maintain the WM unit of measure for the affected material. Here are the steps to do this:
  
  
  Access Material Master Data:
  
  Go to transaction code MM02 (Change Material) or MM03 (Display Material).
  Enter the material number and select the appropriate plant.
  
  
  
  Navigate to Warehouse Management View:
  
  In the material master, navigate to the "Warehouse Management" view (this may be labeled as "WM" or "Storage" depending on your SAP version).
  
  
  
  Maintain WM Unit of Measure:
  
  In the WM view, ensure that the WM unit of measure is defined. This is typically the unit in which the material is stored and managed in the warehouse.
  If it is not maintained, enter the appropriate WM unit of measure.
  
  
  
  Save Changes:
  
  After entering the necessary information, save the changes to the material master.
  
  
  
  Test the Process:
  
  After maintaining the WM unit of measure, try to perform the operation that previously resulted in the error to ensure that the issue is resolved.
  
  
  
  Related Information:
  
  Material Master Views: Ensure that you are familiar with the different views of the material master, especially the Basic Data, Sales, Purchasing, and Warehouse Management views.
  Unit of Measure Configuration: Check if the unit of measure is correctly defined in the system. You can do this by using transaction code CUNI to view and maintain units of measure.
  Documentation: Refer to SAP Help documentation for more details on material master data and warehouse management configurations.
  User Authorizations: Ensure that you have the necessary authorizations to make changes to the material master data.
  
  By following these steps, you should be able to resolve the L1140 error and ensure that the material can be processed correctly in the warehouse management system.