How To Fix CNVMBT091 - RFC Destination &1 locked by user &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 091

• Message text: RFC Destination &1 locked by user &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBT091 - RFC Destination &1 locked by user &2. ?

  The SAP error message CNVMBT091 indicates that an RFC (Remote Function Call) destination is locked by a specific user. This typically occurs in the context of data migration or system conversion processes, where RFC connections are used to communicate between different SAP systems or between an SAP system and external systems.
  Cause:
  
  User Lock: The RFC destination is locked by a user, which means that the user has an active session or transaction that is preventing other users or processes from accessing that RFC destination.
  Session Timeout: Sometimes, a session may not have been properly closed, leading to a lock on the RFC destination.
  Configuration Issues: There may be configuration issues with the RFC destination itself, leading to it being locked.
  
  Solution:
  
  Identify the Locking User: Check which user is locking the RFC destination. You can do this by using transaction SM04 (User Overview) or SM12 (Lock Entries) in the SAP GUI.
  Terminate the Session: If the locking user is not actively using the session, you can terminate their session from the SM04 transaction. Be cautious when doing this, as it may disrupt their work.
  Unlock the RFC Destination: If the RFC destination is locked due to a session timeout or other issues, you may need to unlock it manually. This can sometimes be done by restarting the relevant services or processes.
  Check Configuration: Review the configuration of the RFC destination in transaction SM59. Ensure that it is set up correctly and that there are no issues with the connection parameters.
  Consult Logs: Check the system logs (transaction SM21) for any additional information that might indicate why the RFC destination is locked.
  
  Related Information:
  
  RFC Destinations: RFC destinations are defined in transaction SM59 and are used to establish connections between different SAP systems or between SAP and non-SAP systems.
  User Management: Understanding user management and session handling in SAP is crucial for resolving issues related to locked resources.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to RFC locks or provide additional troubleshooting steps.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.