How To Fix /UI2/INTEROP121 - HTTP destination &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/INTEROP -

• Message number: 121

• Message text: HTTP destination &1 already exists

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 /UI2/INTEROP121 - HTTP destination &1 already exists ?

  The SAP error message /UI2/INTEROP121 HTTP destination &1 already exists typically occurs when there is an attempt to create an HTTP destination in the SAP system that already exists with the same name. This can happen during the configuration of SAP Fiori applications or when setting up communication between different SAP systems or services.
  Cause:
  
  Duplicate HTTP Destination: The error indicates that an HTTP destination with the specified name already exists in the system.
  Configuration Issues: This can occur if there was an attempt to reconfigure or redeploy an application that requires the same HTTP destination.
  System Migration or Transport: If you have migrated or transported configurations from one system to another, it may lead to duplicate entries.
  
  Solution:
  
  
  Check Existing Destinations:
  
  Go to transaction code SM59 (RFC Destinations).
  Look for the HTTP destination with the name specified in the error message.
  If it exists, you can either modify it or delete it if it is no longer needed.
  
  
  
  Modify the Existing Destination:
  
  If the existing destination is valid and you need to change its configuration, you can edit it directly in SM59.
  
  
  
  Delete the Duplicate Destination:
  
  If the existing destination is not needed, you can delete it from the SM59 transaction.
  
  
  
  Use a Different Name:
  
  If you are trying to create a new destination and the name is already taken, consider using a different name for the new HTTP destination.
  
  
  
  Check Transport Requests:
  
  If this issue arose after a transport, check the transport request to ensure that it does not contain duplicate entries.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  SICF: Manage HTTP services.
  SPRO: Access the SAP Reference IMG for configuration settings.
  
  
  
  Documentation: Refer to SAP Help documentation for more details on configuring HTTP destinations and troubleshooting common issues.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  
  By following these steps, you should be able to resolve the error and ensure that your HTTP destinations are correctly configured in your SAP system.