How To Fix LB103 - Please maintain the 'Use of UoM' key for material &1

SAP Error Message - Details

• Message type: E = Error

• Message class: LB - Logistics: Batch - Management

• Message number: 103

• Message text: Please maintain the 'Use of UoM' key for material &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LB103 - Please maintain the 'Use of UoM' key for material &1 ?

  The SAP error message LB103, which states "Please maintain the 'Use of UoM' key for material &1," typically occurs when there is an issue with the unit of measure (UoM) settings for a specific material in the SAP system. This error is often encountered in the context of inventory management, material master data, or when performing transactions that involve units of measure.
  Cause:
  The error is caused by the absence of a defined "Use of UoM" key for the specified material. The "Use of UoM" key is a critical setting that determines how the unit of measure is utilized in various processes, such as purchasing, inventory management, and sales. If this key is not maintained, the system cannot process transactions involving that material.
  Solution:
  To resolve the LB103 error, you need to maintain the "Use of UoM" key for the affected material. Here are the steps to do this:
  
  
  Access Material Master Data:
  
  Go to transaction code MM02 (Change Material) or MM01 (Create Material) in SAP.
  
  
  
  Enter Material Number:
  
  Input the material number that is causing the error.
  
  
  
  Select Views:
  
  Choose the relevant views that include unit of measure settings, typically the "Basic Data" or "Purchasing" views.
  
  
  
  Maintain Unit of Measure:
  
  In the unit of measure section, look for the "Use of UoM" field. This field may be labeled differently depending on your SAP version or configuration.
  Enter the appropriate key that defines how the unit of measure should be used (e.g., for purchasing, sales, etc.).
  
  
  
  Save Changes:
  
  After making the necessary changes, save the material master data.
  
  
  
  Re-test the Transaction:
  
  Go back to the transaction that triggered the error and try to execute it again to see if the issue is resolved.
  
  
  
  Related Information:
  
  Unit of Measure (UoM): In SAP, units of measure are critical for managing inventory and transactions. Each material can have multiple units of measure (e.g., base unit, purchase unit, sales unit), and each must be correctly configured.
  Material Master Data: This is a central repository of information about materials in SAP. It includes various views that contain data relevant to different business processes.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM02 (Change Material), MM03 (Display Material), and MM01 (Create Material) for managing material master data.
  
  If you continue to experience issues after following these steps, it may be helpful to consult with your SAP administrator or support team for further assistance.