How To Fix DMC_RT_MSG523 - Duplicate structure: structure &1 already exists in BO &2

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_MSG - DMC: Runtime Object Messages

• Message number: 523

• Message text: Duplicate structure: structure &1 already exists in BO &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_MSG523 - Duplicate structure: structure &1 already exists in BO &2 ?

  The SAP error message DMC_RT_MSG523 indicates that there is a duplicate structure in the Business Object (BO) you are working with. Specifically, it means that a structure with the name specified in the error message already exists in the specified Business Object.
  Cause:
  
  
  Duplicate Definition: The most common cause of this error is that a structure with the same name has already been defined in the Business Object. This can happen if:
  
  You are trying to create a new structure with a name that is already in use.
  There was an attempt to import or replicate a structure that already exists.
  
  
  
  Data Model Changes: If there have been recent changes to the data model, such as importing or modifying structures, it may lead to conflicts with existing definitions.
  
  
  Development Environment Issues: Sometimes, issues in the development environment, such as caching or synchronization problems, can lead to this error.
  
  
  Solution:
  
  
  Check Existing Structures: 
  
  Review the existing structures in the specified Business Object (BO) to confirm if the structure name already exists.
  If it does exist and is not needed, consider deleting or renaming the existing structure.
  
  
  
  Rename the New Structure: 
  
  If you need to keep both structures, consider renaming the new structure to avoid the conflict.
  
  
  
  Clear Cache: 
  
  If you suspect that the issue is related to caching, try clearing the cache or refreshing the development environment.
  
  
  
  Review Import/Export Processes: 
  
  If the error occurred during an import or export process, ensure that the process is correctly configured and that there are no conflicts with existing definitions.
  
  
  
  Consult Documentation: 
  
  Check SAP documentation or community forums for any specific guidelines related to the Business Object you are working with.
  
  
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Version Compatibility: Ensure that you are working with compatible versions of SAP components, as discrepancies can sometimes lead to unexpected errors.
  
  By following these steps, you should be able to resolve the DMC_RT_MSG523 error and continue with your work in SAP.