How To Fix COD_BYD_ERP_INT204 - Port &1 of type &2 already exists for another RFC destination

SAP Error Message - Details

• Message type: E = Error

• Message class: COD_BYD_ERP_INT - Messages for CRM on Demand / ERP integration

• Message number: 204

• Message text: Port &1 of type &2 already exists for another RFC destination

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message COD_BYD_ERP_INT204 - Port &1 of type &2 already exists for another RFC destination ?

  The SAP error message COD_BYD_ERP_INT204 indicates that there is a conflict with the configuration of RFC (Remote Function Call) destinations in your SAP system. Specifically, it means that a port of a certain type is already in use by another RFC destination, which prevents the creation or modification of the current RFC destination.
  Cause:
  
  Duplicate Port Configuration: The error typically arises when you attempt to create or modify an RFC destination that uses a port that is already assigned to another RFC destination.
  Incorrect Configuration: There may be a misconfiguration in the RFC settings, leading to the same port being referenced multiple times.
  System Limitations: Some systems have restrictions on the number of ports or the way they can be assigned.
  
  Solution:
  
  
  Check Existing RFC Destinations:
  
  Go to transaction SM59 (RFC Destinations).
  Review the list of existing RFC destinations to identify if the port in question is already assigned to another destination.
  
  
  
  Modify or Delete Conflicting RFC Destination:
  
  If you find that the port is indeed in use, you can either modify the existing RFC destination to use a different port or delete it if it is no longer needed.
  
  
  
  Create a New Port:
  
  If the existing configuration is necessary, consider creating a new port for the new RFC destination. Ensure that the new port does not conflict with any existing ones.
  
  
  
  Check for Transport Issues:
  
  If this error occurs after a transport, ensure that the transport did not inadvertently create conflicts in the RFC configuration.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to RFC configuration for any specific guidelines or limitations regarding port assignments.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  SICF: Check and manage HTTP services, which may also relate to RFC configurations.
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  
  System Logs: Check system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  
  SAP Community: Consider searching or posting in the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to resolve the COD_BYD_ERP_INT204 error and successfully configure your RFC destinations.