How To Fix IH670 - No class is assigned to any of the materials

IH670 - Overview

• Message type: E = Error

• Message class: IH - structuring

• Message number: 670

• Message text: No class is assigned to any of the materials

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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IH670 - Details

• The SAP error message IH670, which states "No class is assigned to any of the materials," typically occurs in the context of classification in SAP, particularly when dealing with materials that are expected to have classification data associated with them. This error indicates that the system cannot find a class assigned to the materials you are trying to work with, which is necessary for certain processes, such as reporting or categorization.
  
  Cause:
  
  Missing Class Assignment: The materials in question have not been assigned to any classification class. This can happen if the materials were created without being linked to a class or if the class assignment was removed.
  Incorrect Material Type: Some material types may not support classification, leading to this error if you attempt to classify them.
  Data Inconsistency: There may be inconsistencies in the material master data that prevent the system from recognizing the class assignment.
  Authorization Issues: Sometimes, users may not have