How To Fix MDG_MDF323 - Node &1 is underneath itself in hierarchy &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 323

• Message text: Node &1 is underneath itself in hierarchy &2

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 MDG_MDF323 - Node &1 is underneath itself in hierarchy &2 ?

  The SAP error message MDG_MDF323 indicates that there is a hierarchical structure issue in the Master Data Governance (MDG) system. Specifically, the error message states that a node (or element) is incorrectly positioned in its own hierarchy, meaning that a node is a descendant of itself, which is not allowed in hierarchical structures.
  Cause:
  The error typically arises from one of the following scenarios:
  
  Incorrect Hierarchical Structure: The node has been assigned as a child of itself, either directly or indirectly through other nodes.
  Data Entry Error: During the creation or modification of the hierarchy, a user may have mistakenly linked a node to itself.
  Data Migration Issues: If data has been migrated from another system, the hierarchy may not have been correctly established, leading to circular references.
  
  Solution:
  To resolve the MDG_MDF323 error, follow these steps:
  
  Identify the Nodes: Determine which node is causing the issue. The error message will provide the node ID and the hierarchy ID.
  Check Hierarchical Structure: Review the hierarchy structure in the MDG application to see how the nodes are related. You can use transaction codes like MDG_MDF_HIERARCHY to visualize the hierarchy.
  Correct the Hierarchy:
  
  If the node is incorrectly linked to itself, remove the self-referential link.
  If the node is part of a larger hierarchy, ensure that it is correctly positioned without any circular references.
  
  
  Validate Changes: After making corrections, validate the hierarchy to ensure that the error does not reoccur.
  Test the Changes: Perform any necessary tests to confirm that the hierarchy functions as expected without errors.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing hierarchies in MDG, such as MDG_MDF_HIERARCHY for viewing and editing hierarchies.
  Documentation: Refer to SAP Help documentation for Master Data Governance to understand the hierarchy management features and best practices.
  Support: If the issue persists or if you are unsure about making changes, consider reaching out to your SAP support team or consulting with an SAP expert.
  
  By following these steps, you should be able to resolve the MDG_MDF323 error and ensure that your hierarchical data structure is correctly configured.