How To Fix CNV_DMC_WDA137 - The system is currently generating the delta file, please refresh later

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 137

• Message text: The system is currently generating the delta file, please refresh later

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_WDA137 - The system is currently generating the delta file, please refresh later ?

  The SAP error message CNV_DMC_WDA137 indicates that the system is in the process of generating a delta file, which is a part of the data migration process in SAP systems, particularly when using the Data Migration Cockpit (DMC) or similar tools. This message typically occurs when a user attempts to access or refresh data while the system is still processing the delta file.
  Cause:
  
  Ongoing Delta File Generation: The primary cause of this error is that the system is currently busy generating a delta file, which is necessary for tracking changes in data during the migration process.
  Concurrency Issues: Multiple users or processes trying to access the same data or perform operations simultaneously can lead to this error.
  Long Processing Time: If the delta file generation takes longer than expected due to a large volume of data or system performance issues, users may encounter this message.
  
  Solution:
  
  Wait and Refresh: The simplest solution is to wait for a few moments and then refresh the screen or reattempt the operation. The delta file generation should complete, allowing you to proceed.
  Check Background Jobs: If the issue persists, check the status of background jobs related to the delta file generation. You can do this using transaction codes like SM37 (Job Monitoring) to see if the job is still running or if it has encountered an error.
  System Performance: If the delta file generation is taking too long, consider checking system performance metrics. You may need to optimize the database or system resources.
  Consult Logs: Review the application logs or system logs for any additional error messages or warnings that might provide more context about the issue.
  Contact Support: If the problem continues and you cannot identify the cause, consider reaching out to SAP support or your internal IT team for further assistance.
  
  Related Information:
  
  Data Migration Cockpit (DMC): This tool is used for migrating data from legacy systems to SAP S/4HANA or other SAP systems. Understanding how DMC works can help in troubleshooting related issues.
  Delta Files: Delta files are used to capture changes in data after the initial load, allowing for incremental updates. Familiarity with how delta files are generated and processed can be beneficial.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance related to this error message.
  
  By following these steps, you should be able to resolve the CNV_DMC_WDA137 error and continue with your data migration tasks.