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

STREX005 - Overview

• 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