How To Fix W_CB401 - Material Group 4 &1 does not exist

W_CB401 - Overview

• Message type: E = Error

• Message class: W_CB -

• Message number: 401

• Message text: Material Group 4 &1 does not exist

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 W_CB401 - Material Group 4 &1 does not exist ?

  SAP Error Message:
  W_CB401 Material Group 4 &1 does not exist
  
  
  Cause:
  This warning message occurs when the system tries to reference or use a Material Group 4 (a classification field in material master or related master data) that does not exist in the system's configuration or master data tables.
  
  Material Group 4 is typically a classification or grouping field used in certain SAP modules (e.g., MM, SD, or PP) for reporting, pricing, or categorization.
  The system expects a valid entry for Material Group 4 but cannot find the specified value (&1 is a placeholder for the actual group code).
  This can happen during material master creation, data upload, transaction processing, or custom program execution where Material Group 4 is referenced.
  
  
  Where is Material Group 4 maintained?
  Material Group 4 is usually maintained in the Material Master under the Basic Data or Classification views, or in a custom field depending on the SAP implementation.
  
  Possible Reasons:
  
  The Material Group 4