How To Fix MAT_MESSAGES008 - Only one unit can be indicated as a base unit of measure.

SAP Error Message - Details

• Message type: E = Error

• Message class: MAT_MESSAGES -

• Message number: 008

• Message text: Only one unit can be indicated as a base unit of measure.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MAT_MESSAGES008 - Only one unit can be indicated as a base unit of measure. ?

  The SAP error message MAT_MESSAGES008 indicates that there is an issue with the unit of measure configuration for a material in the SAP system. Specifically, it states that only one unit can be indicated as a base unit of measure for a material. This error typically arises when you attempt to assign multiple base units of measure to a single material, which is not allowed in SAP.
  Cause:
  
  Multiple Base Units of Measure: The most common cause of this error is that the material master record has been incorrectly configured to have more than one base unit of measure.
  Data Entry Errors: During the creation or modification of the material master, there may have been an error in data entry, leading to the assignment of multiple base units.
  Configuration Issues: There may be issues in the configuration settings of the material types or units of measure in the system.
  
  Solution:
  To resolve this error, you need to ensure that only one base unit of measure is assigned to the material. Here are the steps to do this:
  
  
  Access Material Master:
  
  Go to transaction code MM02 (Change Material) or MM01 (Create Material) depending on your requirement.
  
  
  
  Select the Material:
  
  Enter the material number that is causing the error.
  
  
  
  Check Units of Measure:
  
  Navigate to the "Basic Data" view or the relevant view where the unit of measure is defined.
  Check the "Base Unit of Measure" field and ensure that only one unit is specified.
  
  
  
  Remove Additional Base Units:
  
  If there are multiple entries in the base unit of measure field, remove the additional entries and keep only one valid base unit of measure.
  
  
  
  Save Changes:
  
  After making the necessary changes, save the material master record.
  
  
  
  Validation:
  
  After saving, you can validate by trying to perform the action that previously triggered the error to ensure that it has been resolved.
  
  
  
  Related Information:
  
  Unit of Measure Configuration: Ensure that your unit of measure settings are correctly configured in the system. This includes checking the definitions of units of measure in transaction CUNI (Unit of Measure Conversion).
  Material Master Views: Familiarize yourself with the different views of the material master, as the base unit of measure is typically defined in the Basic Data view.
  Documentation: Refer to SAP documentation or help files for more detailed information on material master data management and unit of measure settings.
  
  If the issue persists after following these steps, it may be necessary to consult with your SAP support team or a functional consultant for further investigation.