How To Fix 8B323 - Enter a valid material class

8B323 - Overview

• Message type: E = Error

• Message class: 8B - Localization (Brazil)

• Message number: 323

• Message text: Enter a valid material class

What causes this issue?

The material class you have chosen, &v1&, using grouping key &v2&, does
not exist.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter a different material class or choose a different grouping key.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 8B323 - Enter a valid material class ?

  The SAP error message 8B323: "Enter a valid material class" typically occurs when you are trying to create or modify a material master record, and the system does not recognize the material class you have entered. This can happen for several reasons, including:
  Causes:
  
  Invalid Material Class: The material class you entered does not exist in the system or is not defined correctly.
  Authorization Issues: The user may not have the necessary authorizations to access or create materials in the specified class.
  
  Configuration Issues: The material class may not be properly configured in the system, or it may not be assigned to the relevant material type.
  Data Entry Error: There may be a typographical error in the material class code.
  
  Solutions:
  
  
  Check Material Class: Verify that the material class you are trying to enter is valid. You can do this by navigating to the relevant configuration settings in SAP (usually in the SPRO transaction) or by checking