How To Fix CNV_DMC_WDA051 - System error during preparation of the data transfer

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 051

• Message text: System error during preparation of the data transfer

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Try starting the data transfer again later.
If the error persists, do the following:
For cloud systems, contact your technical support.
For on-premise systems, check the application log for detailed
information. If the problem still cannot be solved, contact your
technical support.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_WDA051 - System error during preparation of the data transfer ?

  The SAP error message CNV_DMC_WDA051 indicates a system error that occurs during the preparation phase of data transfer in the Data Migration Cockpit (DMC). This error can arise due to various reasons, including configuration issues, data inconsistencies, or system resource limitations.
  Possible Causes:
  
  Configuration Issues: Incorrect settings in the Data Migration Cockpit or the source/target systems can lead to this error.
  Data Inconsistencies: If the data being transferred has inconsistencies or does not meet the required format, it can trigger this error.
  System Resource Limitations: Insufficient memory or processing power on the SAP system can cause failures during data preparation.
  Transport Layer Issues: Problems with the transport layer or network connectivity can also lead to this error.
  Authorization Issues: Lack of necessary authorizations for the user executing the data transfer can result in errors.
  
  Solutions:
  
  Check Configuration: Review the configuration settings in the Data Migration Cockpit and ensure they are correctly set up for both the source and target systems.
  Data Validation: Validate the data being transferred to ensure it meets the required formats and constraints. Clean up any inconsistencies in the data.
  Monitor System Resources: Check the system's memory and CPU usage. If resources are low, consider increasing them or optimizing the system performance.
  Review Logs: Check the application logs (transaction SLG1) for more detailed error messages that can provide insights into the root cause of the issue.
  User Authorizations: Ensure that the user executing the data transfer has the necessary authorizations to perform the operation.
  Retry the Transfer: After addressing the above points, retry the data transfer process to see if the issue persists.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may 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.
  Documentation: Refer to the official SAP documentation for the Data Migration Cockpit for best practices and guidelines on data transfer processes.
  
  If the issue persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.