How To Fix M3399 - Classification not defined for material type & of this material

SAP Error Message - Details

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 399

• Message text: Classification not defined for material type & of this material

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 M3399 - Classification not defined for material type & of this material ?

  The SAP error message M3399, which states "Classification not defined for material type & of this material," typically occurs when you are trying to classify a material in SAP, but the classification system has not been set up correctly for the specific material type you are working with.
  
  Cause:
  
  Missing Classification Definition: The material type you are trying to classify does not have a classification definition in the system.
  Incorrect Material Type: The material type may not be intended for classification, or it may not be configured to use the classification system.
  
  Configuration Issues: The classification system may not be properly configured in the SAP system, leading to this error when attempting to classify materials.
  
  
  Solution:
  To resolve the M3399 error, you can follow these steps:
  
  
  Check Material Type Configuration:
  
  Go to the transaction code SPRO (SAP Reference IMG).
  Navigate to Logistics General > Material Master > Basic Settings > Material Types.
  Check the settings for the specific material type