How To Fix RS_B4HANA_TRANSFER034 - Transfer already started. Definition cannot be changed.

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_B4HANA_TRANSFER - Messages for object transfer

• Message number: 034

• Message text: Transfer already started. Definition cannot be changed.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS_B4HANA_TRANSFER034 - Transfer already started. Definition cannot be changed. ?

  The SAP error message RS_B4HANA_TRANSFER034: Transfer already started. Definition cannot be changed. typically occurs in the context of data transfer processes, particularly when working with SAP BW/4HANA or similar data warehousing solutions. This error indicates that a data transfer process (DTP) is currently running, and as a result, you cannot modify its definition or settings until the current transfer is completed.
  Cause:
  
  Ongoing Data Transfer: The primary cause of this error is that a data transfer process is already in progress. This could be due to a scheduled job or a manual execution that has not yet completed.
  Locking Mechanism: SAP employs a locking mechanism to prevent changes to the DTP while it is actively processing data to ensure data integrity and consistency.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Running Processes:
  
  Go to the transaction code SM37 (Job Monitoring) to check if there are any jobs related to the DTP that are currently running.
  If you find a job that is stuck or taking too long, you may need to analyze it further or terminate it if necessary.
  
  
  
  Wait for Completion:
  
  If the DTP is running as expected, simply wait for it to complete. Once the transfer is finished, you should be able to modify the DTP definition.
  
  
  
  Monitor DTP Status:
  
  You can also check the status of the DTP in the Data Warehousing Workbench (transaction code RSA1) under the "Data Transfer Processes" section to see if it is still active.
  
  
  
  Terminate the Process (if necessary):
  
  If you determine that the process is stuck and needs to be terminated, you can do so from the SM37 transaction. Be cautious with this approach, as terminating a process can lead to data inconsistencies.
  
  
  
  Review Logs:
  
  Check the logs for the DTP or the job to identify any issues that may have caused it to hang or take longer than expected.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SM37: Job Monitoring
  RSA1: Data Warehousing Workbench
  
  
  Best Practices:
  
  Regularly monitor your data transfer processes to ensure they are completing successfully.
  Implement error handling and logging mechanisms to catch issues early.
  Schedule data transfers during off-peak hours to minimize the impact on system performance.
  
  
  
  By following these steps, you should be able to resolve the RS_B4HANA_TRANSFER034 error and make the necessary changes to your DTP definition.