How To Fix M!104 - You are using unit &1

SAP Error Message - Details

• Message type: E = Error

• Message class: M! -

• Message number: 104

• Message text: You are using unit &1

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message M!104 - You are using unit &1 ?

  The SAP error message M!104 indicates that there is an issue related to the unit of measure (UoM) being used in a transaction. The message typically states something like "You are using unit &1," where "&1" is a placeholder for the specific unit of measure that is causing the issue.
  Cause:
  The error can occur due to several reasons, including:
  
  Incorrect Unit of Measure: The unit of measure being used in the transaction is not defined or is not valid for the material or the transaction type.
  Unit of Measure Conversion: There may be issues with the conversion factors between different units of measure, especially if the system is trying to convert between base units and alternative units.
  Material Master Data: The material master data may not be set up correctly, particularly in the "Units of Measure" view.
  Transaction Type Restrictions: Certain transaction types may have restrictions on which units of measure can be used.
  
  Solution:
  To resolve the M!104 error, you can take the following steps:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and check the "Units of Measure" view.
  Ensure that the unit of measure you are trying to use is listed and correctly defined.
  
  
  
  Review Unit of Measure Settings:
  
  Check the settings for the unit of measure in the configuration (transaction code OME1 for defining units of measure).
  Ensure that the unit of measure is correctly set up for the relevant material type and transaction.
  
  
  
  Verify Transaction Type:
  
  Ensure that the transaction you are trying to perform allows the use of the specified unit of measure.
  If necessary, consult the documentation or configuration settings for the specific transaction type.
  
  
  
  Check Conversion Factors:
  
  If you are using alternative units of measure, verify that the conversion factors are correctly defined in the material master.
  
  
  
  Consult SAP Notes:
  
  If the issue persists, check for any relevant SAP Notes that may address this specific error message or provide additional guidance.
  
  
  
  Contact Support:
  
  If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), MM02 (Change Material), OME1 (Define Units of Measure).
  SAP Documentation: Refer to SAP Help Portal for detailed documentation on material management and unit of measure handling.
  SAP Community: Engage with the SAP Community forums for discussions and solutions related to similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the M!104 error in SAP.