How To Fix RSOS135 - &1 is an invalid TREX RFC connection

SAP Error Message - Details

• Message type: E = Error

• Message class: RSOS - Message class for BI Metadata Search with TREX

• Message number: 135

• Message text: &1 is an invalid TREX RFC connection

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 RSOS135 - &1 is an invalid TREX RFC connection ?

  The SAP error message RSOS135 &1 is an invalid TREX RFC connection typically indicates that there is an issue with the connection between the SAP system and the TREX (Text Retrieval and Extraction) search engine. TREX is used for full-text search and is often integrated with SAP applications for enhanced search capabilities.
  Cause:
  
  Invalid Connection Configuration: The RFC connection to TREX may not be configured correctly in the SAP system.
  TREX Server Issues: The TREX server may be down, misconfigured, or not reachable from the SAP system.
  Network Issues: There could be network connectivity problems between the SAP system and the TREX server.
  Authorization Issues: The user or service account used for the RFC connection may not have the necessary permissions to access the TREX server.
  Version Mismatch: There may be compatibility issues between the versions of SAP and TREX being used.
  
  Solution:
  
  
  Check RFC Connection:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the TREX RFC connection and check its configuration.
  Test the connection to ensure it is working properly.
  
  
  
  Verify TREX Server Status:
  
  Ensure that the TREX server is up and running.
  Check the TREX logs for any errors or issues that might indicate why the connection is failing.
  
  
  
  Network Connectivity:
  
  Ensure that there are no firewall or network issues preventing the SAP system from reaching the TREX server.
  Use tools like ping or telnet to check connectivity to the TREX server.
  
  
  
  Check Authorizations:
  
  Verify that the user or service account used for the RFC connection has the necessary authorizations to access TREX.
  
  
  
  Review Configuration:
  
  Ensure that the TREX configuration in the SAP system matches the actual configuration of the TREX server.
  Check for any recent changes in the system that might have affected the connection.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes or documentation related to TREX and RFC connections for any specific troubleshooting steps or updates.
  
  
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  TREX Documentation: Review the official TREX documentation for configuration and troubleshooting guidelines.
  System Logs: Check the system logs (transaction SM21) for any related error messages that might provide more context about the issue.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.