How To Fix ESH_POST_INSTALL031 - RFC destination of TREX changed to &1

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_POST_INSTALL - ESH Post Installation

• Message number: 031

• Message text: RFC destination of TREX changed to &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_POST_INSTALL031 - RFC destination of TREX changed to &1 ?

  The SAP error message ESH_POST_INSTALL031 indicates that the RFC (Remote Function Call) destination for TREX (Text Retrieval and Extraction) has changed to a new value, denoted by &1. This message typically arises during the installation or configuration of the SAP Enterprise Search (SAP ESH) component, which relies on TREX for its search capabilities.
  Cause:
  The error can occur due to several reasons:
  
  Configuration Changes: The RFC destination for TREX may have been modified or incorrectly configured in the SAP system.
  System Migration or Upgrade: If the system has been migrated or upgraded, the RFC destination settings may not have been updated accordingly.
  Network Issues: There may be network connectivity issues preventing the system from reaching the TREX server.
  TREX Server Status: The TREX server may be down or not properly configured to accept connections.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Look for the RFC destination that corresponds to TREX (usually named something like TREX_<SID>).
  Verify that the destination is correctly configured with the right connection parameters (e.g., target host, service, and logon credentials).
  
  
  
  Test the Connection:
  
  In transaction SM59, select the TREX RFC destination and click on the "Connection Test" button to ensure that the connection to the TREX server is successful.
  
  
  
  Update Configuration:
  
  If the RFC destination has changed, update the configuration in the relevant settings (e.g., in the SAP ESH configuration) to reflect the new destination.
  
  
  
  Check TREX Server:
  
  Ensure that the TREX server is up and running. You can check the TREX administration tools or logs for any issues.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SLG1) for any additional error messages that might provide more context about the issue.
  
  
  
  Reconfigure ESH:
  
  If necessary, reconfigure the SAP ESH settings to ensure that they point to the correct TREX instance.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for any specific instructions related to your version of SAP ESH and TREX.
  
  
  
  Related Information:
  
  TREX: TREX is a search engine used by SAP for full-text search capabilities. It is essential for various SAP applications, including SAP Enterprise Search.
  RFC Destinations: RFC destinations are used in SAP to define how to connect to other SAP systems or external systems. Proper configuration is crucial for successful communication.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for relevant notes in the SAP Support Portal.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.