How To Fix MDG_GN026 - Logical name &4 is not unique - system error

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_GN - Messages from the Generator

• Message number: 026

• Message text: Logical name &4 is not unique - system error

What causes this issue?

The logical name path &V1&/&V2&/&V3&/&V4& is not unique in blueprint
&V1&, or catalogs <LB><EX>MDG_GN_TEXBP</></> and <LB><EX>MDG_GN_TGOBJ</>
</> are inconsistent.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_GN026 - Logical name &4 is not unique - system error ?

  The SAP error message MDG_GN026 indicates that there is a problem with the logical name specified in the Master Data Governance (MDG) system. The error message states that the logical name is not unique, which means that there are multiple entries in the system that share the same logical name, leading to a conflict.
  Cause:
  
  
  Duplicate Logical Names: The most common cause of this error is that the logical name you are trying to use is already assigned to another entity in the system. This could happen if:
  
  There was a manual entry error.
  Data was imported or migrated incorrectly.
  There are multiple records in the database that have the same logical name.
  
  
  
  Configuration Issues: Sometimes, the configuration settings in the MDG system may not be set up correctly, leading to conflicts in logical names.
  
  
  Solution:
  
  
  Check for Duplicates:
  
  Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the relevant tables for existing entries with the same logical name.
  Identify the records that are causing the conflict.
  
  
  
  Modify or Delete Duplicates:
  
  If you find duplicate entries, you can either modify the existing records to use a different logical name or delete the unnecessary duplicates if they are not needed.
  
  
  
  Ensure Unique Naming Conventions:
  
  Establish a naming convention for logical names to avoid future conflicts. This can include prefixes, suffixes, or other identifiers that ensure uniqueness.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the MDG system to ensure that they are set up correctly and that there are no conflicting settings that could lead to this error.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support notes related to MDG and logical names for any additional guidance or specific instructions related to your version of SAP.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot resolve it, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration or version.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE16, and MDG-specific transactions for managing master data.
  SAP Notes: Search for SAP Notes related to MDG_GN026 in the SAP Support Portal for any patches or updates that may address this issue.
  MDG Documentation: Review the Master Data Governance documentation for best practices on managing logical names and data integrity.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.