How To Fix CNVMBTRFC016 - Calling Destination &1 with error: &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBTRFC - Messages used in RFC Management and its objects

• Message number: 016

• Message text: Calling Destination &1 with error: &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBTRFC016 - Calling Destination &1 with error: &2. ?

  The SAP error message CNVMBTRFC016 typically indicates an issue with Remote Function Call (RFC) communication between systems. This error can occur during data migration or when using the SAP Landscape Transformation (SLT) tool, particularly in the context of the SAP S/4HANA migration process.
  Cause:
  The error message CNVMBTRFC016 is generally caused by one of the following issues:
  
  
  RFC Destination Issues: The specified RFC destination (&1) may not be correctly configured or may be down. This could be due to network issues, incorrect credentials, or the target system being unavailable.
  
  
  Authorization Problems: The user credentials used for the RFC connection may not have the necessary authorizations to perform the requested operation.
  
  
  System Configuration: There may be configuration issues in the source or target system that prevent successful communication.
  
  
  Network Issues: There could be network connectivity problems between the systems involved in the RFC call.
  
  
  Timeouts: The RFC call may be timing out due to long processing times or heavy load on the target system.
  
  
  Solution:
  To resolve the CNVMBTRFC016 error, you can take the following steps:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Verify the configuration of the RFC destination (&1). Ensure that it is correctly set up and that the connection test is successful.
  
  
  
  Test Connection:
  
  In SM59, use the "Connection Test" option to check if the destination is reachable.
  
  
  
  Review Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to execute the required functions.
  
  
  
  Check System Status:
  
  Ensure that the target system is up and running. Check for any maintenance activities or downtimes.
  
  
  
  Network Configuration:
  
  Verify network settings and ensure that there are no firewalls or network policies blocking the RFC communication.
  
  
  
  Increase Timeout Settings:
  
  If timeouts are suspected, consider increasing the timeout settings for the RFC connection in SM59.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the RFC trace (transaction ST22) for any additional error messages that may provide more context.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM59 - RFC Destinations
  SM21 - System Log
  ST22 - Dump Analysis
  SLG1 - Application Log
  
  
  
  Documentation: Refer to SAP Help documentation for more details on RFC configuration and troubleshooting.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to identify and resolve the underlying cause of the CNVMBTRFC016 error.