How To Fix MM159 - The units of measure cannot be maintained for manufacturer parts

SAP Error Message - Details

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 159

• Message text: The units of measure cannot be maintained for manufacturer parts

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MM159 - The units of measure cannot be maintained for manufacturer parts ?

  The SAP error message MM159, which states "The units of measure cannot be maintained for manufacturer parts," typically occurs in the Materials Management (MM) module when there is an issue with the configuration or data related to the units of measure for a specific material or manufacturer part.
  Cause:
  
  Incorrect Configuration: The units of measure for the manufacturer part may not be properly configured in the system.
  Missing Data: The necessary data for the manufacturer part, such as the base unit of measure or alternative units of measure, may be missing or incorrectly set up.
  Material Type Restrictions: Certain material types may have restrictions on how units of measure can be maintained.
  Authorization Issues: The user may not have the necessary authorizations to maintain units of measure for manufacturer parts.
  Data Inconsistencies: There may be inconsistencies in the data related to the material master or manufacturer part.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and verify the units of measure assigned to the manufacturer part.
  Ensure that the base unit of measure is correctly defined and that any alternative units of measure are also set up properly.
  
  
  
  Review Configuration:
  
  Check the configuration settings for units of measure in the SAP system (transaction code SPRO).
  Navigate to Logistics - General > Material Master > Basic Settings > Units of Measure and ensure that the settings are correct.
  
  
  
  Verify Material Type Settings:
  
  Ensure that the material type associated with the manufacturer part allows for the maintenance of units of measure.
  Check the settings in the material type configuration to see if there are any restrictions.
  
  
  
  Check User Authorizations:
  
  Ensure that the user has the necessary authorizations to maintain units of measure for the material in question.
  Consult with your SAP security team if there are any authorization issues.
  
  
  
  Data Consistency Check:
  
  Run a consistency check on the material master data to identify any discrepancies or issues that may be causing the error.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on managing units of measure for manufacturer parts.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), MM02 (Change Material), SPRO (Customizing).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  User Forums: Consider visiting SAP community forums or user groups for insights from other users who may have encountered similar issues.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.