How To Fix E0353 - This port already exists, cannot be created

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 353

• Message text: This port already exists, cannot be created

What causes this issue?

A new port should be created, but the port name selected already
exists.

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?

'Create' function: The cursor is positioned on a port that is already
available. Please position the cursor on the leading line of the port
type required.
'Copy' function: A port with the name entered already exists. Please
choose a different name.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0353 - This port already exists, cannot be created ?

  The SAP error message E0353, "This port already exists, cannot be created," typically occurs when there is an attempt to create a communication port in the SAP system that already exists. This can happen in various contexts, such as when configuring RFC (Remote Function Call) destinations, IDocs, or other communication setups.
  Cause:
  
  Duplicate Port Definition: The most common cause is that a port with the same name already exists in the system.
  Configuration Errors: There may be a misconfiguration in the settings where the system is trying to create a port that is already defined.
  Transport Issues: If you are transporting configurations from one system to another, there might be a conflict with existing ports.
  
  Solution:
  
  
  Check Existing Ports: 
  
  Go to transaction code WE21 (for IDoc ports) or SM59 (for RFC destinations) and check if the port you are trying to create already exists.
  If it does exist, you can either use the existing port or delete it if it is no longer needed.
  
  
  
  Modify the Existing Port: 
  
  If the existing port is not configured correctly, you can modify it instead of creating a new one.
  
  
  
  Use a Different Name: 
  
  If you need to create a new port, consider using a different name that does not conflict with existing ports.
  
  
  
  Transport Management: 
  
  If the issue arises during a transport, ensure that the transport does not include the creation of a port that already exists in the target system.
  
  
  
  Check for System Consistency: 
  
  Ensure that the system is consistent and that there are no leftover configurations from previous setups that might be causing the conflict.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  WE21: For managing IDoc ports.
  SM59: For managing RFC destinations.
  
  
  Documentation: Refer to SAP Help documentation for detailed information on port configuration and management.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP Basis team or refer to SAP support for further assistance.