How To Fix MA644 - Characteristics assignment & not completely defined

SAP Error Message - Details

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 644

• Message text: Characteristics assignment & not completely defined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MA644 - Characteristics assignment & not completely defined ?

  The SAP error message MA644, which states "Characteristics assignment & not completely defined," typically occurs in the context of Material Management (MM) and is related to the configuration of characteristics and classes in the classification system. This error indicates that a material or a class is missing required characteristics or that the characteristics assigned to a material are not fully defined.
  Cause:
  
  Incomplete Characteristics Assignment: The material or class may have characteristics assigned that are not fully defined. This could mean that certain required values for those characteristics are missing.
  Missing Values: The characteristics that are supposed to be assigned to the material may not have been assigned values, or the values assigned do not meet the required criteria.
  Configuration Issues: There may be issues in the configuration of the classification system, such as missing classes or characteristics that should be linked to the material.
  
  Solution:
  
  
  Check Characteristics Assignment:
  
  Go to the classification view of the material in question.
  Verify that all required characteristics are assigned and that they have valid values.
  If any characteristics are missing values, fill them in as necessary.
  
  
  
  Review Class Configuration:
  
  Check the class to which the material is assigned. Ensure that all required characteristics for that class are defined and that they have valid values.
  If necessary, modify the class to include the required characteristics.
  
  
  
  Use Transaction Codes:
  
  Use transaction codes like CL02 (Change Class) or CL03 (Display Class) to review and modify class characteristics.
  Use MM02 (Change Material) to check the material's classification data.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to classification and characteristics to ensure that you are following the correct procedures.
  
  
  
  Check for Customizations:
  
  If your organization has custom developments or enhancements, check if any custom logic is affecting the characteristics assignment.
  
  
  
  Testing:
  
  After making the necessary changes, test the material creation or modification process again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Classification System: Understand how the classification system works in SAP, including how classes and characteristics are defined and used.
  Material Master Data: Familiarize yourself with the material master data structure and how classification impacts material management processes.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be specific fixes or recommendations provided by SAP.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in Material Management and classification.