How To Fix WN230 - No material group hierarchies exist for selection

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 230

• Message text: No material group hierarchies exist for selection

What causes this issue?

A material group hierarchy could not be determined for the
specified selection conditions.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WN230 - No material group hierarchies exist for selection ?

  The SAP error message WN230 "No material group hierarchies exist for selection" typically occurs when you are trying to access or utilize material group hierarchies in a transaction or report, but the system cannot find any hierarchies defined for the selected criteria. This can happen in various contexts, such as when working with material master data, reporting, or inventory management.
  Causes:
  
  No Hierarchies Defined: The most common cause is that there are no material group hierarchies defined in the system for the material groups you are trying to access.
  Incorrect Selection Criteria: The selection criteria you are using may not match any existing hierarchies. This could be due to incorrect filters or parameters.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view the material group hierarchies.
  Data Consistency Issues: There may be inconsistencies or issues in the data that prevent the hierarchies from being recognized.
  
  Solutions:
  
  
  Check Material Group Hierarchies:
  
  Go to the relevant transaction (e.g., MM01, MM02) and check if material group hierarchies are defined.
  Use transaction codes like OMD1 (for defining material group hierarchies) to verify if any hierarchies exist.
  
  
  
  Define Material Group Hierarchies:
  
  If no hierarchies exist, you may need to create them. This can be done in the customizing settings under the material management module.
  Ensure that the material groups you are working with are correctly assigned to the hierarchies.
  
  
  
  Review Selection Criteria:
  
  Double-check the selection criteria you are using. Make sure they align with the existing hierarchies.
  Adjust filters or parameters to ensure they match the defined hierarchies.
  
  
  
  Check User Authorizations:
  
  Ensure that the user has the necessary authorizations to view and access material group hierarchies.
  Consult with your SAP security team if you suspect authorization issues.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to material group hierarchies for additional guidance.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01, MM02, OMD1, and OMD2 for managing material groups and hierarchies.
  SAP Notes: Check for any SAP Notes related to this error message for potential patches or updates that may resolve the issue.
  Customizing Settings: Understanding the customizing settings in the SAP system for material management can help in troubleshooting and resolving issues related to material group hierarchies.
  
  By following these steps, you should be able to identify the cause of the WN230 error and implement a solution.