How To Fix 0D643 - RFC cannot be executed: posting data transfer is running

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 643

• Message text: RFC cannot be executed: posting data transfer is running

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 0D643 - RFC cannot be executed: posting data transfer is running ?

  The SAP error message "0D643 RFC cannot be executed: posting data transfer is running" typically indicates that there is a conflict in the system where a data transfer process is currently active, preventing the execution of the requested Remote Function Call (RFC). This situation often arises in scenarios involving data posting or batch processing where multiple processes may be trying to access the same resources simultaneously.
  Cause:
  
  Active Data Transfer: The most common cause is that a data transfer process (like a batch job or a background process) is currently running, which locks the resources needed for the RFC call.
  Long-Running Transactions: If a transaction takes longer than expected, it can block other processes from executing.
  System Configuration: Certain configurations or settings in the SAP system may lead to locking issues during data transfers.
  
  Solution:
  
  Check Active Processes: Use transaction codes like SM37 (Job Monitoring) to check for any active jobs that might be running and causing the lock. If you find a job that is stuck or taking too long, you may need to analyze or terminate it.
  Wait for Completion: If the data transfer is legitimate and necessary, you may need to wait for it to complete before attempting the RFC call again.
  Review Logs: Check the system logs (transaction SLG1) for any errors or warnings that might provide more context about the ongoing data transfer.
  Adjust Job Scheduling: If this is a recurring issue, consider adjusting the scheduling of batch jobs to avoid conflicts.
  Increase Timeout Settings: If the data transfer is expected to take a long time, consider increasing the timeout settings for the RFC calls, if applicable.
  Consult Basis Team: If the issue persists, it may be necessary to involve your SAP Basis team to investigate further, as they can provide insights into system performance and locking issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 (Job Monitoring), SM21 (System Log), and SLG1 (Application Log) for troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review SAP documentation regarding RFC and data transfer processes to understand how they interact and how to manage them effectively.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.