How To Fix CNVMBTRFC084 - No connection with destination &1. Error message is '&2'.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 084

• Message text: No connection with destination &1. Error message is '&2'.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBTRFC084 - No connection with destination &1. Error message is '&2'. ?

  The SAP error message CNVMBTRFC084 indicates that there is a problem with the connection to a specified destination in the system. This error typically occurs in the context of Remote Function Calls (RFC) when the system is unable to establish a connection to the target system or destination.
  Causes:
  
  Incorrect Destination Configuration: The RFC destination may not be configured correctly in the SAP system.
  Network Issues: There may be network connectivity issues between the SAP systems.
  Target System Down: The target system may be down or not reachable.
  Authorization Issues: The user credentials used for the connection may not have the necessary authorizations.
  Firewall Restrictions: Firewalls or security settings may be blocking the connection.
  SAP Gateway Issues: The SAP Gateway service may not be running or configured properly.
  
  Solutions:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 and check the configuration of the RFC destination mentioned in the error message.
  Ensure that the connection type is correct (e.g., TCP/IP, TMW, etc.) and that the target host and service are correctly specified.
  
  
  
  Test the Connection:
  
  In transaction SM59, select the RFC destination and use the "Test Connection" option to verify if the connection can be established.
  
  
  
  Check Network Connectivity:
  
  Use tools like ping or telnet to check if the target system is reachable from the source system.
  Ensure that there are no network issues or outages.
  
  
  
  Verify Target System Status:
  
  Ensure that the target SAP system is up and running and that the necessary services are active.
  
  
  
  Review User Authorizations:
  
  Check if the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  
  
  
  Check Firewall Settings:
  
  Ensure that any firewalls between the systems allow traffic on the required ports for SAP communication.
  
  
  
  Review SAP Gateway Configuration:
  
  Ensure that the SAP Gateway is running and properly configured. You can check the status of the gateway using transaction SMGW.
  
  
  
  Check Logs for More Details:
  
  Review the system logs (transaction SM21) and the developer trace files (transaction ST11) for any additional error messages that may provide more context.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SMGW: SAP Gateway Monitor
  SM21: System Log
  ST11: Developer Traces
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to RFC connections.
  
  
  By following these steps, you should be able to diagnose and resolve the CNVMBTRFC084 error in your SAP system. If the issue persists, consider reaching out to your SAP Basis team or SAP support for further assistance.