How To Fix E0603 - Port with destination & already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 603

• Message text: Port with destination & already exists

What causes this issue?

The specified logical destination &v1& already exists in a port
definition.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

A port was selected for which the specified logical destination is
entered.
If you do want to use the same logical destination in several ALE
ports, this can be carried out using the following transaction:

<DS:TRAN.OYE4>Execute function</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0603 - Port with destination & already exists ?

  The SAP error message E0603, which states "Port with destination & already exists," typically occurs when there is an attempt to create a communication port in the SAP system that already exists with the same name or identifier. This can happen in various contexts, such as when configuring RFC destinations, setting up communication channels, or managing integration scenarios.
  Cause:
  
  Duplicate Port Name: The most common cause is that a port with the specified name already exists in the system.
  Configuration Errors: There may be a misconfiguration in the system where the same port is being referenced multiple times.
  Transport Issues: If you are transporting configurations from one system to another, the port may already exist in the target system.
  
  Solution:
  
  
  Check Existing Ports: 
  
  Go to transaction code SM59 (RFC Destinations) or SICF (HTTP Services) depending on where the error is occurring.
  Look for the port name in question and verify if it already exists.
  
  
  
  Rename or Delete:
  
  If the port already exists and is not needed, you can delete it or rename the new port you are trying to create to avoid the conflict.
  If the existing port is in use, consider modifying the configuration of the new port instead.
  
  
  
  Transport Management:
  
  If this error arises during a transport, ensure that the transport does not include objects that already exist in the target system.
  You may need to adjust the transport request to exclude the conflicting port.
  
  
  
  Check for System Consistency:
  
  Ensure that there are no inconsistencies in the system configuration that could lead to this error. This may involve checking for orphaned entries or misconfigured settings.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific version of SAP you are using, as there may be version-specific considerations or patches available.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM59 for RFC destinations, SICF for HTTP services, and SE80 for object navigation.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  System Logs: Review system logs (transaction SLG1) for additional context or related errors that may provide more insight into the issue.
  
  By following these steps, you should be able to resolve the E0603 error and successfully manage your SAP communication ports.