How To Fix CNV_DMC_WDA082 - Cannot start transfer; data transfer or synchronization is in progress

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 082

• Message text: Cannot start transfer; data transfer or synchronization is in progress

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_WDA082 - Cannot start transfer; data transfer or synchronization is in progress ?

  The SAP error message CNV_DMC_WDA082 indicates that a data transfer or synchronization process is currently in progress, preventing the initiation of a new transfer. This error is commonly encountered in the context of SAP Data Migration Cockpit (DMC) or during data transfer activities in SAP systems.
  Cause:
  
  Ongoing Data Transfer: The most common cause of this error is that there is an active data transfer or synchronization process that has not yet completed. This could be due to a long-running job or a previous transfer that has not been properly terminated.
  Locking Mechanism: SAP systems often implement locking mechanisms to prevent concurrent data operations that could lead to data inconsistencies. If a transfer is in progress, the system will block new transfer requests.
  System Configuration: There may be configuration settings that limit the number of concurrent data transfer processes.
  
  Solution:
  
  
  Check Active Processes: 
  
  Use transaction codes like SM37 (Job Monitoring) to check for any active background jobs related to data transfer. Look for jobs that are still running and may be causing the lock.
  If you find a job that is stuck or taking too long, you may need to analyze it further or terminate it if appropriate.
  
  
  
  Wait for Completion: If a data transfer is legitimately in progress, the simplest solution is to wait for it to complete. Monitor the progress and check the logs for any issues.
  
  
  Terminate Stuck Processes: If you identify a process that is stuck and not progressing, you may need to terminate it. This can be done through:
  
  SM37: Select the job and choose to cancel it.
  SM50: If it’s a dialog process, you can find the process and terminate it.
  
  
  
  Check for Locks: Use transaction SM12 to check for any locks that may be preventing the new transfer from starting. If you find locks that are no longer needed, you can delete them.
  
  
  Review Configuration: If this issue occurs frequently, review the configuration settings related to data transfers to ensure they are set appropriately for your business needs.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the Data Migration Cockpit for any specific recommendations or known issues.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 (Job Monitoring), SM12 (Lock Entries), and SM50 (Process Overview).
  SAP Notes: Check SAP Notes for any updates or patches that may address this issue.
  System Logs: Review system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.