How To Fix STREX005 - Error in the RFC communication: &1 (&2)

SAP Error Message - Details

• Message type: E = Error

• Message class: STREX - Message for TREX ABAP Client

• Message number: 005

• Message text: Error in the RFC communication: &1 (&2)

What causes this issue?

A service of the TREX search engine was called. An RFC connection to the
gateway is required for this, but the connection could not be
established. As a result, the TREX services cannot currently be used.

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?

Contact your system administrator.

Procedure for System Administrators

Check the RFC connection "&V2&" using transaction SM59 (TCP/IP
communication).
Error occurred during RFC connection: "&V1&"

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message STREX005 - Error in the RFC communication: &1 (&2) ?

  The SAP error message STREX005 indicates that there is an issue with Remote Function Call (RFC) communication between systems. This error can occur in various scenarios, such as when trying to execute a remote function module or when there is a problem with the connection between the SAP systems.
  Causes of STREX005 Error
  
  Network Issues: There may be network connectivity problems between the SAP systems involved in the RFC communication.
  Configuration Errors: Incorrect configuration of the RFC destination in transaction SM59 can lead to this error. This includes incorrect settings for the target system, such as the system ID, client, user credentials, or connection type.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to execute the requested function.
  System Availability: The target system may be down or not reachable due to maintenance or other issues.
  Firewall or Security Settings: Firewalls or security settings may be blocking the RFC communication.
  SAP Notes: There may be known issues or bugs that have been addressed in SAP Notes that need to be applied.
  
  Solutions to STREX005 Error
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems. You can use tools like ping or traceroute to verify connectivity.
  Verify RFC Destination:
  
  Go to transaction SM59 and check the configuration of the RFC destination.
  Ensure that the connection type is correct (e.g., TCP/IP).
  Test the connection using the "Connection Test" button in SM59.
  
  
  Check User Authorizations: Ensure that the user credentials used for the RFC connection have the necessary authorizations to execute the function module.
  Check System Status: Verify that the target system is up and running. You can check the status of the system in transaction SM51 or by logging into the target system directly.
  Review Firewall Settings: If applicable, check firewall settings to ensure that they are not blocking the RFC communication.
  Consult SAP Notes: Search for relevant SAP Notes that may address this specific error. You can use the SAP Support Portal to find notes related to RFC communication issues.
  Check Logs: Review the system logs (transaction SM21) and the developer trace files (transaction ST22) for any additional error messages that may provide more context about the issue.
  
  Related Information
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SM21: System Log
  ST22: Dump Analysis
  SM51: List of Active Instances
  
  
  SAP Notes: Always check the SAP Support Portal for the latest notes related to RFC communication issues.
  Documentation: Refer to SAP Help documentation for detailed information on RFC and troubleshooting steps.
  
  By following these steps, you should be able to diagnose and resolve the STREX005 error in your SAP environment.