How To Fix USMD1B225 - &1 must not have lower-level nodes

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1B - Meldungen: MDF Anschluss

• Message number: 225

• Message text: &1 must not have lower-level nodes

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 USMD1B225 - &1 must not have lower-level nodes ?

  The SAP error message USMD1B225 typically occurs in the context of SAP Master Data Governance (MDG) when you are trying to save or activate a data model or a hierarchy that has a structural issue. The message indicates that a certain node (the one referenced by &1) is not allowed to have lower-level nodes, which means that it is expected to be a leaf node in the hierarchy but has child nodes associated with it.
  Cause:
  
  Hierarchy Structure Violation: The node you are trying to save or activate is defined in a way that it should not have any child nodes, but it currently does. This could be due to incorrect data entry or a misunderstanding of the hierarchy structure.
  Configuration Issues: There may be issues with the configuration of the data model or the hierarchy settings that define which nodes can have children.
  Data Integrity Issues: The data being processed may not adhere to the defined rules of the hierarchy, leading to this error.
  
  Solution:
  
  Check Hierarchy Definition: Review the hierarchy definition in your MDG configuration. Ensure that the node in question is correctly defined as a parent or a leaf node based on your business requirements.
  Remove Child Nodes: If the node is indeed supposed to be a leaf node, you will need to remove any child nodes associated with it. This can usually be done through the MDG data maintenance transaction.
  Adjust Data Model: If the hierarchy structure needs to be changed, you may need to adjust the data model configuration to allow for the desired structure.
  Data Validation: Before saving or activating the hierarchy, validate the data to ensure that it complies with the defined rules and structure.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or fixes related to this error message.
  Documentation: Refer to the SAP Master Data Governance documentation for guidelines on hierarchy management and data model configuration.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team for further assistance, as they may have access to more specific tools and resources to diagnose and resolve the issue.