How To Fix MDG_MDF321 - &1 is not a valid hierarchy entry

MDG_MDF321 - Overview

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 321

• Message text: &1 is not a valid hierarchy entry

What causes this issue?

You have added &V1& to the hierarchy. However, this assignment is not
permitted by the definition of the characteristic.

System Response

The changes are not applied.

How to fix this error?

Change the hierarchy structure accordingly.

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_MDF321 - &1 is not a valid hierarchy entry ?

  The SAP error message MDG_MDF321 indicates that a specific entry is not recognized as a valid hierarchy entry in the Master Data Governance (MDG) module. This error typically arises when working with hierarchical data structures, such as organizational units, product hierarchies, or other master data entities that rely on a parent-child relationship.
  
  Cause:
  
  Invalid Hierarchy Entry: The entry you are trying to use may not exist in the hierarchy or may have been deleted or deactivated.
  Incorrect Data Input: The data being inputted may not conform to the expected format or structure required by the hierarchy.
  Hierarchy 
  Configuration Issues: There may be issues with the configuration of the hierarchy itself, such as missing nodes or incorrect relationships.
  Authorization Issues: The user may not have the necessary permissions to access or modify the hierarchy entries.
  
  
  Solution:
  
  Verify Entry Existence: Check if the entry you are trying to use actually exists in the hierarchy. You can do this by