How To Fix W+665 - No material class was selected

SAP Error Message - Details

• Message type: E = Error

• Message class: W+ -

• Message number: 665

• Message text: No material class was selected

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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Smart SAP Assistant

• What is the cause and solution for SAP error message W+665 - No material class was selected ?

  Certainly! Here's a detailed explanation for the SAP error message W+665 No material class was selected:
  
  SAP Message: W+665 No material class was selected
  
  
  Cause:
  This warning message occurs when you attempt to perform an operation that requires a material class to be selected or assigned, but no material class has been chosen. Material classes in SAP are used to classify materials based on characteristics and are essential for certain processes such as classification, reporting, or batch management.
  Common scenarios where this message appears:
  
  When creating or changing a material and the system expects a material class to be assigned but none is selected.
  When using classification-related transactions or functions that require a material class.
  When trying to assign characteristics to a material without first selecting a material class.
  
  
  
  Solution:
  
  
  Select a Material Class:
  
  Go to the material master record (transaction MM01/MM02).
  Navigate to the Classification tab.
  Select or assign the appropriate material class relevant to your material.
  Save the changes.
  
  
  
  Check Configuration:
  
  Ensure that