How To Fix UGMD306 - Leaf &1 cannot be deleted nor moved manually

SAP Error Message - Details

• Message type: E = Error

• Message class: UGMD - FIN Master Data: Messages

• Message number: 306

• Message text: Leaf &1 cannot be deleted nor moved manually

What causes this issue?

You attempted to delete leaf &v1& from the hierarchy, or to move it to
or insert it at a position that is not suitable. This leaf <ZH>cannot be
manually</> modified due to one of the following uses of &v1& in the
Customizing settings.
In Customizing &v2&
In the assigned end node (a "delta leaf") of a group

System Response

The system <ZK>ignored</> the explicit change made to this leaf. Under
certain circumstances, this may only become apparent once the screen is
refreshed.

How to fix this error?

If you want to modify this leaf, modify the Customizing settings if
required. The hierarchies that use the leaf are then adjusted
<ZK>automatically.</>

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 UGMD306 - Leaf &1 cannot be deleted nor moved manually ?

  The SAP error message UGMD306 indicates that a specific leaf (or node) in a hierarchy cannot be deleted or moved manually. This typically occurs in the context of SAP Master Data Management (MDM) or SAP Business Warehouse (BW) when dealing with hierarchical data structures.
  Cause:
  
  
  Hierarchy Structure: The leaf node you are trying to delete or move may be part of a hierarchy that has dependencies or relationships with other nodes. If the node is a parent or has children, it cannot be deleted or moved without addressing these relationships.
  
  
  Data Integrity Constraints: There may be data integrity constraints in place that prevent the deletion or movement of the node. This could be due to business rules or settings in the system that protect certain data from being altered.
  
  
  Authorization Issues: The user may not have the necessary permissions to perform the delete or move operation on the specified node.
  
  
  Active Processes: If there are active processes or transactions that involve the node, it may be locked for changes until those processes are completed.
  
  
  Solution:
  
  
  Check Hierarchy Relationships: Review the hierarchy structure to ensure that the node is not a parent or does not have children. If it does, you may need to first delete or move the child nodes.
  
  
  Review Data Integrity Rules: Check for any data integrity rules or constraints that may be preventing the operation. You may need to consult with your SAP administrator or data governance team to understand these rules.
  
  
  User Permissions: Ensure that the user attempting the operation has the necessary permissions. If not, request the appropriate access from your SAP security team.
  
  
  Check for Active Processes: Investigate if there are any active processes or transactions that involve the node. If so, wait for those processes to complete or terminate them if appropriate.
  
  
  Use Transaction Codes: If applicable, use specific transaction codes (like SE11 for data dictionary or SE80 for object navigator) to analyze the hierarchy and make necessary adjustments.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for more detailed guidance on managing hierarchies and resolving related issues.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Training and Documentation: Ensure that users are trained on how to manage hierarchies within SAP to prevent similar issues in the future.
  
  If the problem persists after trying the above solutions, it may be necessary to involve SAP support for further assistance.