How To Fix DMCLG186 - Migration object &1 already exists and will not be created

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 186

• Message text: Migration object &1 already exists and will not be created

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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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMCLG186 - Migration object &1 already exists and will not be created ?

  The SAP error message DMCLG186 indicates that a migration object you are trying to create already exists in the system. This typically occurs during data migration processes, such as when using the Data Migration Cockpit or other tools for transferring data into SAP.
  Cause:
  The error arises when:
  
  You attempt to create a migration object that has already been defined in the system.
  There may be a duplicate entry in the migration object list.
  The migration object might have been created in a previous migration run or by another user.
  
  Solution:
  To resolve the DMCLG186 error, you can take the following steps:
  
  
  Check Existing Migration Objects:
  
  Go to the relevant transaction or tool where you are managing migration objects (e.g., Data Migration Cockpit).
  Look for the migration object with the same name or identifier that you are trying to create.
  
  
  
  Delete or Modify Existing Object:
  
  If the existing migration object is no longer needed, you can delete it.
  If you need to keep the existing object, consider modifying your new migration object to have a different name or identifier.
  
  
  
  Review Migration Object Configuration:
  
  Ensure that the configuration of the migration object you are trying to create is correct and does not conflict with existing objects.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration tool you are using for any additional guidance or troubleshooting steps.
  
  
  
  Check for Transport Issues:
  
  If you are working in a development environment and transporting objects to a production environment, ensure that the transport does not contain conflicting migration objects.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is a recurring problem.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTMC (for the Data Migration Cockpit) or other related tools you are using.
  SAP Notes: Search for SAP Notes related to migration objects and the specific error message for any patches or updates that may address the issue.
  Best Practices: Follow best practices for data migration, including proper planning and documentation of migration objects to avoid conflicts.
  
  By following these steps, you should be able to resolve the DMCLG186 error and successfully create or manage your migration objects in SAP.