How To Fix WUE018 - Enter a unit of measure

SAP Error Message - Details

• Message type: E = Error

• Message class: WUE - Messages in package WAKT_ADD_ON

• Message number: 018

• Message text: Enter a unit of measure

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WUE018 - Enter a unit of measure ?

  The SAP error message WUE018: "Enter a unit of measure" typically occurs when a user attempts to perform an action that requires a unit of measure (UoM) but has not provided one. This error is common in various SAP modules, particularly in inventory management, sales, and purchasing.
  Cause:
  
  Missing Unit of Measure: The most straightforward cause is that the user has not entered a unit of measure in the relevant field.
  Incorrect Configuration: The material master data may not be properly configured with the necessary units of measure.
  Data Entry Error: The user may have overlooked the unit of measure field or entered an invalid value.
  Transaction Context: Certain transactions require a unit of measure to be specified, and if the context does not allow for it, the error will be triggered.
  
  Solution:
  
  Enter a Unit of Measure: Ensure that you enter a valid unit of measure in the required field. This could be a standard unit like "EA" (each), "KG" (kilogram), "L" (liter), etc.
  Check Material Master Data: Verify that the material master data is correctly set up with the appropriate units of measure. You can do this by:
  
  Navigating to the material master (transaction code MM03).
  Checking the "Basic Data" and "Sales Org. Data" views for the correct UoM settings.
  
  
  Review Transaction Requirements: Make sure that the transaction you are trying to execute allows for the entry of a unit of measure. If it does not, you may need to adjust your approach or consult documentation for that specific transaction.
  Consult with SAP Support: If the issue persists, it may be beneficial to consult with your SAP support team or refer to SAP Notes for any known issues or patches related to this error.
  
  Related Information:
  
  Unit of Measure Configuration: In SAP, units of measure can be defined in the material master. You can set up alternative units of measure and conversion factors.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  MM01 (Create Material)
  MM02 (Change Material)
  MM03 (Display Material)
  
  
  SAP Documentation: Refer to SAP Help documentation for detailed information on units of measure and their configuration.
  
  By following these steps, you should be able to resolve the WUE018 error and proceed with your transaction in SAP.