How To Fix CDS_UNIT_MESSAGE017 - Double/Clone cannot be created. Double/Clone already exists for '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: CDS_UNIT_MESSAGE - Message Class

• Message number: 017

• Message text: Double/Clone cannot be created. Double/Clone already exists for '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CDS_UNIT_MESSAGE017 - Double/Clone cannot be created. Double/Clone already exists for '&1' ?

  The SAP error message CDS_UNIT_MESSAGE017 indicates that there is an attempt to create a double or clone of an object (such as a CDS view, data element, or other repository object) that already exists in the system. This error typically arises in the context of Core Data Services (CDS) when you are trying to create a new object that has the same name or identifier as an existing one.
  Cause:
  
  Duplicate Object Name: The most common cause of this error is that you are trying to create a new CDS view or object with a name that already exists in the system.
  Transport Issues: If you are working in a transport environment, it is possible that the object was already transported to the target system, leading to a conflict.
  Development Environment: If multiple developers are working on the same object or if there are inconsistencies between development and production environments, this error may occur.
  
  Solution:
  
  
  Check Existing Objects: 
  
  Use transaction SE11 (Data Dictionary) or SE80 (Object Navigator) to search for the existing object with the same name. If it exists, you may need to modify the existing object instead of creating a new one.
  
  
  
  Rename the New Object: 
  
  If you need to create a new object, consider renaming it to avoid the conflict with the existing object.
  
  
  
  Transport Management: 
  
  If you suspect that the object exists due to a transport, check the transport logs and ensure that the object is not already in the target system. You may need to adjust your transport requests accordingly.
  
  
  
  Check for Active Versions: 
  
  Ensure that there are no active versions of the object that might be causing the conflict. You can check this in the object’s version management.
  
  
  
  Clear Cache: 
  
  Sometimes, clearing the cache can help resolve issues related to object visibility. You can do this using transaction code /n/iwfnd/cache for OData services or /n/sap/bc/ui5_ui5/sap/arsrvc_upb_admn for UI5 applications.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Documentation: Review the official SAP documentation on Core Data Services and object management for best practices and guidelines.
  Community Forums: Engage with the SAP Community or forums like SAP Community Network (SCN) for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the CDS_UNIT_MESSAGE017 error and successfully manage your CDS objects.