How To Fix MDG_MDF302 - No hierarchies are allowed for characteristic &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 302

• Message text: No hierarchies are allowed for characteristic &1

What causes this issue?

You defined hierarchy links (edges) for the field &V1&. However, the
field definition does not allow hierarchies.

System Response

Processing terminated.

How to fix this error?

Correct the customizing settings.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_MDF302 - No hierarchies are allowed for characteristic &1 ?

  The SAP error message MDG_MDF302: No hierarchies are allowed for characteristic &1 typically occurs in the context of Master Data Governance (MDG) when you are trying to create or modify a characteristic that is not allowed to have hierarchies associated with it. This error is often encountered when working with characteristics in the context of data modeling or data governance processes.
  Cause:
  The error is triggered when:
  
  You attempt to assign a hierarchy to a characteristic that is defined in the system as not supporting hierarchies.
  The characteristic is configured in a way that does not allow for hierarchical structures, which is often the case for certain types of master data or attributes.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Characteristic Configuration:
  
  Review the configuration of the characteristic in question. Ensure that it is set up correctly and that it is intended to support hierarchies if that is your goal.
  If the characteristic is not meant to have a hierarchy, you should remove any hierarchy assignments or references.
  
  
  
  Modify Data Model:
  
  If you need the characteristic to support hierarchies, you may need to modify the data model or the characteristic settings in the MDG configuration.
  This may involve changing the characteristic type or its properties in the MDG data model.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for MDG and the specific characteristics you are working with. This can provide insights into the limitations and configurations allowed for different types of characteristics.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as there may be fixes or enhancements related to this issue in newer versions.
  
  
  
  Seek Help from SAP Support:
  
  If you are unable to resolve the issue through configuration changes, consider reaching out to SAP support for assistance. They can provide guidance based on the specific details of your implementation.
  
  
  
  Related Information:
  
  SAP MDG Documentation: Review the official SAP documentation for Master Data Governance to understand the characteristics and their configurations.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like MDGIMG) that can help you navigate the configuration settings for MDG.
  
  By following these steps, you should be able to address the MDG_MDF302 error and ensure that your characteristics are configured correctly for your master data governance processes.