How To Fix WM400 - Material category & not assigned to transaction

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 400

• Message text: Material category & not assigned to transaction

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WM400 - Material category & not assigned to transaction ?

  The SAP error message WM400 ("Material category & not assigned to transaction") typically occurs in the Warehouse Management (WM) module when a material is not properly configured for the transaction you are trying to perform. This can happen during various processes, such as goods movements, stock transfers, or inventory management.
  Cause:
  
  Material Category Not Defined: The material category for the specific material is not defined in the system for the transaction you are trying to execute.
  Transaction Type Not Allowed: The material may not be allowed for the specific transaction type in the Warehouse Management settings.
  Configuration Issues: There may be issues in the configuration of the Warehouse Management module or the material master data.
  Missing Assignments: The material category may not be assigned to the relevant warehouse or storage type.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and check the material category assigned to the material.
  Ensure that the material is set up correctly for the warehouse management processes.
  
  
  
  Review WM Configuration:
  
  Access the Warehouse Management configuration (transaction code SPRO) and navigate to the relevant settings.
  Check if the material category is assigned to the appropriate transaction types in the WM settings.
  
  
  
  Assign Material Category:
  
  If the material category is not assigned to the transaction, you may need to assign it. This can typically be done in the configuration settings under "Define Material Types" or "Assign Material Types to Warehouse Management".
  
  
  
  Check Transaction Type Settings:
  
  Ensure that the transaction type you are trying to execute is allowed for the material category in question.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files for specific details on the configuration of material categories and transaction types in WM.
  
  
  
  Testing:
  
  After making the necessary changes, test the transaction again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  MM03: Display Material
  SPRO: Customizing Implementation Guide
  WM01: Warehouse Management Monitor
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to WM400.
  User Roles and Authorizations: Ensure that the user executing the transaction has the necessary authorizations to perform the action.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in Warehouse Management.