How To Fix /PLMU/UI_LBL018 - Define unit of measure for quantity

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMU/UI_LBL -

• Message number: 018

• Message text: Define unit of measure for quantity

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 /PLMU/UI_LBL018 - Define unit of measure for quantity ?

  The SAP error message /PLMU/UI_LBL018 Define unit of measure for quantity typically occurs when a unit of measure (UoM) is not defined for a specific quantity in the context of a logistics or inventory management process. This error can arise in various scenarios, such as during the creation of a material master, when processing goods movements, or when entering data in a transaction that requires a quantity to be specified with a corresponding unit of measure.
  Cause:
  
  Missing Unit of Measure: The most common cause is that the unit of measure has not been defined for the material or quantity being processed.
  Incorrect Configuration: The configuration settings for units of measure in the material master or related tables may be incomplete or incorrect.
  Data Entry Error: The user may have forgotten to enter a unit of measure when inputting data.
  
  Solution:
  
  
  Define Unit of Measure:
  
  Go to the material master record (transaction code MM01 for creation or MM02 for modification).
  Ensure that the unit of measure is defined in the relevant views (e.g., Basic Data, Purchasing, Sales).
  Check the "Units of Measure" tab to ensure that the appropriate UoM is assigned.
  
  
  
  Check Material Type:
  
  Ensure that the material type allows for the use of the specified unit of measure. Some material types may have restrictions.
  
  
  
  Review Configuration:
  
  If you have access to configuration settings, check the settings in the Customizing (transaction code SPRO) under Logistics -> Material Management -> Basic Settings -> Units of Measure.
  Ensure that the UoM is correctly defined in the system.
  
  
  
  Data Entry:
  
  When entering data in transactions, make sure to specify the unit of measure for the quantity being processed.
  
  
  
  Consult Documentation:
  
  If the issue persists, consult SAP documentation or your organization's SAP support team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  MM01, MM02, MM03 (Material Master)
  MB1A, MB1B, MB1C (Goods Movements)
  
  
  Unit of Measure Tables: 
  
  Check tables like T006 (Units of Measure) and MARA (General Material Data) for relevant information.
  
  
  SAP Notes: 
  
  Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to units of measure.
  
  
  
  By following these steps, you should be able to resolve the error message and ensure that the unit of measure is properly defined for the quantity in question.