How To Fix CNVMBTRFC114 - Different host names (host '&1' ne host '&2')

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 114

• Message text: Different host names (host '&1' ne host '&2')

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBTRFC114 - Different host names (host '&1' ne host '&2') ?

  The SAP error message CNVMBTRFC114 indicates that there is a mismatch between the host names in a remote function call (RFC). Specifically, it means that the system is trying to connect to a different host than expected. The message will typically show two host names: one that the system is trying to connect to (&1) and another that it is expecting (&2).
  Cause
  This error can occur due to several reasons:
  
  Configuration Issues: The RFC destination may be incorrectly configured, pointing to a different host than intended.
  Network Issues: There may be network routing issues that cause the system to resolve to an unexpected host.
  DNS Resolution Problems: The DNS settings may not be correctly resolving the host names.
  SAP System Landscape Changes: Changes in the system landscape, such as moving systems or changing host names, can lead to this error if the configurations are not updated accordingly.
  
  Solution
  To resolve the CNVMBTRFC114 error, you can follow these steps:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC destination that is causing the issue.
  Verify that the target host name is correct and matches the expected host.
  
  
  
  Update Host Names:
  
  If the host names are incorrect, update them to reflect the correct configuration.
  Ensure that the host name in the RFC destination matches the actual host name of the target system.
  
  
  
  Test Connection:
  
  After making changes, use the "Test Connection" feature in SM59 to ensure that the connection can be established successfully.
  
  
  
  Check DNS Settings:
  
  Ensure that the DNS settings on the server are correctly configured and that the host names resolve to the correct IP addresses.
  
  
  
  Review Network Configuration:
  
  If there are network routing issues, work with your network team to ensure that the systems can communicate properly.
  
  
  
  Check for System Changes:
  
  If there have been recent changes to the system landscape (e.g., migrations, upgrades), ensure that all relevant configurations have been updated accordingly.
  
  
  
  Related Information
  
  
  Transaction Codes: 
  
  SM59: RFC Destinations
  SICF: HTTP Service Hierarchy (for web services)
  ST22: Dump Analysis (to check for related dumps)
  
  
  
  Documentation: Refer to SAP Notes and documentation related to RFC configuration and troubleshooting for more detailed guidance.
  
  
  SAP Community: You can also check the SAP Community forums for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  
  By following these steps, you should be able to identify and resolve the cause of the CNVMBTRFC114 error in your SAP system.