How To Fix SDDIC_ADT_DDLX015 - Multiple entries with same name '&1' not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDIC_ADT_DDLX - Messages for CDS Metadata Extension

• Message number: 015

• Message text: Multiple entries with same name '&1' not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDIC_ADT_DDLX015 - Multiple entries with same name '&1' not allowed ?

  The SAP error message SDDIC_ADT_DDLX015 indicates that there are multiple entries with the same name in a specific context, which is not allowed. This error typically occurs in the context of Data Dictionary objects, such as tables, views, or other database objects, when you attempt to create or modify an object that conflicts with existing entries.
  Cause:
  The primary cause of this error is the presence of duplicate entries in the Data Dictionary. This can happen due to:
  
  Attempting to create a new object (like a table or view) with a name that already exists in the system.
  Having multiple entries in a transport request or development object that share the same name.
  Issues with naming conventions or conflicts in naming across different namespaces.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check for Existing Objects:
  
  Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to search for existing objects with the same name.
  Ensure that the name you are trying to use is unique within the relevant namespace.
  
  
  
  Rename the Object:
  
  If you find that the name is already in use, consider renaming your object to something unique.
  
  
  
  Delete or Modify Duplicates:
  
  If there are duplicate entries that are not needed, you may delete or modify them to resolve the conflict.
  
  
  
  Check Transport Requests:
  
  If you are working with transport requests, ensure that there are no conflicting entries in the request that could cause this issue.
  
  
  
  Namespace Considerations:
  
  If you are working in a custom namespace, ensure that the naming conventions are followed and that there are no conflicts with standard SAP objects.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific object type you are working with for any additional guidelines or restrictions.
  
  
  
  Related Information:
  
  Transaction Codes: SE11, SE80, SE37 (for function modules), SE24 (for classes), etc.
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message.
  Naming Conventions: Familiarize yourself with SAP's naming conventions for objects to avoid future conflicts.
  Development Guidelines: Follow best practices for development in SAP to minimize the risk of encountering similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.