How To Fix WN221 - &1 is not a material group

SAP Error Message - Details

• Message type: E = Error

• Message class: WN - Plant master data maintenance (integrated)

• Message number: 221

• Message text: &1 is not a material group

What causes this issue?

The system cannot determine any value-only materials for the specified
material group &1.

How to fix this error?

Specify a valid material group.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WN221 - &1 is not a material group ?

  The SAP error message WN221 indicates that the specified material group is not valid or does not exist in the system. This error typically occurs when you are trying to assign a material to a material group that has not been defined in the system or when there is a typo in the material group code.
  Cause:
  
  Invalid Material Group: The material group you are trying to use does not exist in the system.
  Typographical Error: There may be a typo in the material group code you entered.
  Authorization Issues: The user may not have the necessary permissions to access the material group.
  Data Inconsistency: There may be inconsistencies in the master data that need to be resolved.
  
  Solution:
  
  
  Check Material Group: Verify that the material group you are trying to use is correctly defined in the system. You can do this by navigating to the relevant configuration or master data transaction (e.g., MM01, MM02) and checking the material group list.
  
  
  Correct Typographical Errors: Ensure that the material group code is entered correctly without any typos.
  
  
  Create Material Group: If the material group does not exist, you may need to create it. This can typically be done in the following way:
  
  Go to the transaction code OMD1 (or the relevant transaction for your version).
  Create a new material group by entering the required details.
  
  
  
  Check Authorizations: Ensure that you have the necessary authorizations to access and use the material group. If not, contact your SAP security administrator.
  
  
  Consult with SAP Support: If the issue persists, it may be beneficial to consult with your SAP support team or refer to SAP Notes for any known issues related to this error.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and OMD1 (Maintain Material Groups).
  SAP Documentation: Refer to SAP Help documentation for more detailed information on material groups and their configuration.
  User Forums: Check SAP community forums or user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to resolve the WN221 error and successfully work with material groups in SAP.