How To Fix ESH_SEARCH121 - Interface &1 not supported if connected to appliance (RFC destination &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_SEARCH - ESH Search

• Message number: 121

• Message text: Interface &1 not supported if connected to appliance (RFC destination &2)

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 ESH_SEARCH121 - Interface &1 not supported if connected to appliance (RFC destination &2) ?

  The SAP error message ESH_SEARCH121 indicates that there is an issue with the interface being used in the context of the Enterprise Search (ESH) when connected to an appliance via an RFC (Remote Function Call) destination. This error typically arises when the system is trying to access a service or function that is not supported by the connected appliance.
  Cause:
  
  Unsupported Interface: The interface specified in the error message is not supported by the appliance you are connected to. This could be due to version mismatches or configuration issues.
  Incorrect RFC Destination: The RFC destination specified may not be correctly configured or may point to an incorrect system that does not support the required interface.
  Missing or Incomplete Configuration: The necessary configurations for the Enterprise Search or the connected appliance may be incomplete or missing.
  Version Compatibility: The version of the SAP system and the appliance may not be compatible, leading to unsupported interfaces.
  
  Solution:
  
  
  Check RFC Destination: Verify the configuration of the RFC destination (&2 in the error message). Ensure that it points to the correct system and that the connection is active.
  
  Use transaction SM59 to check the RFC destination settings.
  
  
  
  Verify Interface Support: Check the documentation for the appliance to confirm that the interface (&1) is indeed supported. If it is not, you may need to use a different interface or update the appliance.
  
  
  Update System/Appliance: If there is a version mismatch, consider updating either the SAP system or the appliance to ensure compatibility.
  
  
  Check Configuration: Review the configuration settings for the Enterprise Search and ensure that all necessary components are properly set up.
  
  Use transaction ESH_COCKPIT to access the Enterprise Search cockpit and check for any configuration issues.
  
  
  
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP Support for further assistance. Provide them with the error message details and any relevant logs.
  
  
  Related Information:
  
  Enterprise Search Documentation: Review the official SAP documentation for Enterprise Search to understand the supported interfaces and configurations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM59 (RFC Destinations), EHS_COCKPIT (Enterprise Search Cockpit), and SLG1 (Application Log) for troubleshooting.
  
  By following these steps, you should be able to identify the root cause of the ESH_SEARCH121 error and implement a suitable solution.