How To Fix UGMD505 - Node &1 has an ambiguous substructure - see long text

SAP Error Message - Details

• Message type: E = Error

• Message class: UGMD - FIN Master Data: Messages

• Message number: 505

• Message text: Node &1 has an ambiguous substructure - see long text

What causes this issue?

When reading the hierarchy structure from the remote storage (BW or ERP)
the system encountered the following error:
Node &v1& appears repeatedly and has <ZH>variously assigned subnodes
</>.
The following found locations are problematic: hierarchies &v2&, &v3&,
hierarchy version &v4&

System Response

When reading the hierarchy, there is overlapping of the subnodes for all
found locations.
In the result, <ZH>all</>subnodes found are uniformly assigned to node
&v1&.
The display of the hierarchy in the application differs from what is
expected.

How to fix this error?

You can either standardize the hierarchies concerned, or limit the
reading to a single hierarchy.

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 UGMD505 - Node &1 has an ambiguous substructure - see long text ?

  The SAP error message UGMD505 indicates that there is an ambiguity in the substructure of a node in a data model or structure definition. This typically occurs in the context of data modeling, especially when working with structures in ABAP or when defining data elements in the SAP system.
  Cause:
  The ambiguity arises when the system encounters multiple definitions or interpretations of a substructure within a node. This can happen due to:
  
  Duplicate Definitions: There may be multiple fields or substructures defined with the same name within the same context.
  Inheritance Issues: If a structure inherits from multiple parent structures that define the same field or substructure, it can lead to ambiguity.
  Changes in Data Model: Recent changes in the data model or structure definitions that have not been properly propagated or updated can also lead to this error.
  
  Solution:
  To resolve the UGMD505 error, you can take the following steps:
  
  
  Check Structure Definitions: Review the structure definitions associated with the node mentioned in the error message. Look for duplicate field names or substructures.
  
  
  Clarify Ambiguities: If there are multiple definitions, you may need to rename fields or substructures to ensure that each one is unique within its context.
  
  
  Review Inheritance: If the structure is inheriting from other structures, ensure that there are no conflicting definitions in the parent structures.
  
  
  Update Data Model: If changes have been made to the data model, ensure that all related structures and definitions are updated accordingly.
  
  
  Consult Documentation: Check the long text of the error message for additional details that may provide context on where the ambiguity is occurring.
  
  
  Testing: After making changes, test the data model or structure to ensure that the error is resolved and that the system behaves as expected.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to UGMD505 for any specific patches or updates that may address this issue.
  Data Dictionary: Familiarize yourself with the Data Dictionary (SE11) in SAP, as this is where you can view and edit structure definitions.
  ABAP Development: If you are working in an ABAP environment, understanding how structures and data types are defined and used in ABAP can help prevent such issues.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.