How To Fix CNVMBT035 - Subproject &1 is already defined in the central system

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 035

• Message text: Subproject &1 is already defined in the central system

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBT035 - Subproject &1 is already defined in the central system ?

  The SAP error message CNVMBT035 indicates that a subproject you are trying to create or define already exists in the central system. This typically occurs in the context of data migration or project management within SAP systems, particularly when using tools like SAP S/4HANA Migration Cockpit or SAP Landscape Transformation (SLT).
  Cause:
  The error is caused by an attempt to create a subproject with a name or identifier that is already in use in the central system. This can happen if:
  
  The subproject was previously created and not deleted.
  There is a naming conflict due to similar naming conventions.
  The system is trying to create a duplicate entry.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Subprojects:
  
  Go to the relevant transaction or tool where you manage subprojects (e.g., transaction code CNV_MBT_SUBPRJ).
  Look for the subproject with the identifier mentioned in the error message.
  If it exists, you may need to either use that existing subproject or delete it if it is no longer needed.
  
  
  
  Rename the New Subproject:
  
  If you need to create a new subproject, consider using a different name or identifier that does not conflict with existing entries.
  
  
  
  Delete Unused Subprojects:
  
  If the existing subproject is not needed, you can delete it. Ensure that you have the necessary authorizations to perform this action.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation or help resources related to the specific tool you are using for data migration or project management. This can provide additional context and guidance.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue through the above steps, consider reaching out to SAP support for assistance. They can provide more detailed insights based on your specific system configuration.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing subprojects, such as CNV_MBT_SUBPRJ.
  SAP Notes: Check for any SAP Notes related to this error message for potential patches or updates that may address the issue.
  Migration Tools: Understand the specific migration tools you are using, as they may have unique configurations or requirements that could lead to this error.
  
  By following these steps, you should be able to resolve the CNVMBT035 error and continue with your project or migration tasks.