How To Fix CNV_DMC_HC071 - &1 - &2: Logging table &3 exists in source system

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_HC -

• Message number: 071

• Message text: &1 - &2: Logging table &3 exists in source 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.

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 CNV_DMC_HC071 - &1 - &2: Logging table &3 exists in source system ?

  The SAP error message CNV_DMC_HC071 typically occurs during data migration processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that a logging table already exists in the source system, which can prevent the migration process from proceeding as expected.
  Cause:
  The error message CNV_DMC_HC071 is triggered when the migration tool detects that a logging table (used for tracking the migration process) already exists in the source system. This can happen for several reasons:
  
  Previous Migration Attempt: A previous migration attempt may have created the logging table, and it was not cleaned up properly.
  Incomplete Cleanup: If the migration process was interrupted or failed, the logging table may not have been removed.
  Multiple Migration Processes: If multiple migration processes are being run simultaneously, they may conflict with each other.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check for Existing Logging Tables:
  
  Use transaction codes like SE11 or SE16 to check if the logging table exists in the source system.
  The logging table name is usually specified in the error message (represented by &3).
  
  
  
  Delete the Existing Logging Table:
  
  If you confirm that the logging table exists and is no longer needed, you can delete it. This can typically be done using a database management tool or through SQL commands, depending on your database system.
  Ensure that you have the necessary authorizations to perform this action.
  
  
  
  Cleanup Migration Artifacts:
  
  If the migration process was interrupted, ensure that all related artifacts are cleaned up. This may include temporary tables or other logging mechanisms.
  
  
  
  Retry the Migration:
  
  After deleting the logging table, retry the migration process. Ensure that you follow the correct steps and monitor for any other potential issues.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation or notes related to the specific migration process you are using. There may be additional steps or considerations specific to your scenario.
  
  
  
  Contact SAP Support:
  
  If the issue persists or if you are unsure about deleting the logging table, consider reaching out to SAP support for assistance.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions for this error.
  Migration Cockpit Documentation: Review the documentation for the SAP Data Migration Cockpit for best practices and troubleshooting tips.
  System Logs: Check system logs for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to resolve the CNV_DMC_HC071 error and proceed with your data migration successfully.