How To Fix 0D641 - Posting transfer cannot be started: RFC is active

SAP Error Message - Details

• Message type: E = Error

• Message class: 0D - FS-CD General Messages

• Message number: 641

• Message text: Posting transfer cannot be started: RFC is active

What causes this issue?

When the start prerequisites for posting data transfer were checked, an
RFC was found to be active.

System Response

Posting data transfer was not started.

How to fix this error?

Procedure for System Administrators

Restart the program as soon as the RFC finishes. If this does not work:
INCLUDE NA_SYSADMIN1 OBJECT DOKU ID TX LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 0D641 - Posting transfer cannot be started: RFC is active ?

  The SAP error message 0D641 ("Posting transfer cannot be started: RFC is active") typically occurs in the context of the SAP system when there is an issue with the Remote Function Call (RFC) interface. This error indicates that the system is unable to initiate a posting transfer because the RFC connection is currently active, which may lead to conflicts or issues in processing.
  Causes:
  
  Active RFC Connections: The error often arises when there are existing active RFC connections that are preventing new posting transfers from being initiated.
  System Lock: The system may be locked due to ongoing processes or transactions that are using the RFC interface.
  Configuration Issues: There may be misconfigurations in the RFC settings or in the related modules that handle posting transfers.
  Network Issues: Network connectivity problems can also lead to issues with RFC connections, causing the system to be unable to process requests.
  
  Solutions:
  
  
  Check Active RFC Connections:
  
  Use transaction code SM58 to check for any active or stuck RFC connections. If you find any, you may need to process or delete them as appropriate.
  
  
  
  Review System Locks:
  
  Check for any locks in the system that might be preventing the posting transfer. You can use transaction code SM12 to view and manage locks.
  
  
  
  Restart RFC Services:
  
  If the issue persists, consider restarting the RFC services or the relevant application server to clear any stale connections.
  
  
  
  Check Configuration:
  
  Review the configuration settings for RFC connections in transaction SM59. Ensure that the settings are correct and that there are no discrepancies.
  
  
  
  Monitor Background Jobs:
  
  Check for any background jobs that might be using the RFC interface. Use transaction SM37 to monitor and manage background jobs.
  
  
  
  Consult Logs:
  
  Review the system logs (transaction SM21) for any additional error messages or warnings that could provide more context about the issue.
  
  
  
  Contact SAP Support:
  
  If the problem cannot be resolved with the above steps, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  RFC (Remote Function Call): A protocol used in SAP systems to enable communication between different systems or between different components of the same system.
  Transaction Codes:
  
  SM58: Monitor RFC calls.
  SM12: Display and manage locks.
  SM59: Maintain RFC destinations.
  SM37: Monitor background jobs.
  SM21: System log.
  
  
  
  By following these steps, you should be able to diagnose and resolve the error message 0D641 in your SAP system.