How To Fix MW380 - &1 is not a valid class

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 380

• Message text: &1 is not a valid class

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MW380 - &1 is not a valid class ?

  The SAP error message "MW380 &1 is not a valid class" typically occurs in the context of Material Management (MM) or Warehouse Management (WM) when the system is unable to recognize a specified class for a material or object. This can happen for several reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  Incorrect Class Name: The class name specified in the transaction or configuration may be misspelled or does not exist in the system.
  Class Not Assigned: The material or object may not be assigned to the specified class.
  Authorization Issues: The user may not have the necessary authorizations to access the class.
  Class Deletion: The class may have been deleted or is inactive in the system.
  Configuration Issues: There may be issues in the configuration settings related to classification.
  
  Solutions:
  
  Verify Class Name: Check the spelling of the class name in the transaction. Ensure that it matches the name defined in the system.
  Check Class Assignment: Go to the classification view of the material or object and verify if the class is correctly assigned.
  Review Authorizations: Ensure that the user has the necessary authorizations to access the class. This can be checked with the help of a security administrator.
  Check Class Status: Use transaction codes like CL02 (Change Class) or CL03 (Display Class) to check if the class exists and is active.
  Configuration Review: If you have access, review the configuration settings in the Customizing (SPRO) to ensure that the classification system is set up correctly.
  Consult Documentation: Refer to SAP documentation or help files for additional context on the classification system and error messages.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Class), CL02 (Change Class), and CL03 (Display Class) for managing classes.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP support team for further assistance.
  
  By following these steps, you should be able to identify and resolve the issue related to the MW380 error message in SAP.