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

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 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