How To Fix CMS171 - RFC Destination &1 Inaccessible: &2&3&4

CMS171 - Overview

• Message type: E = Error

• Message class: CMS - KPro: Content Management Service

• Message number: 171

• Message text: RFC Destination &1 Inaccessible: &2&3&4

What causes this issue?

The RFC destination &v1& is not accessible:
&V2&&V3&&V4&

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?

Procedure for System Administrators

Check the RFC destination &v1& (<DS:TRAN.SM59>Define the RFC
destinations</>) and the installation of the accompanying program.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMS171 - RFC Destination &1 Inaccessible: &2&3&4 ?

  The SAP error message CMS171 indicates that a Remote Function Call (RFC) destination is inaccessible. This can occur for various reasons, and understanding the cause is essential for troubleshooting and resolving the issue. Here’s a breakdown of the potential causes, solutions, and related information for this error message:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system defined in the RFC destination.
  Incorrect Configuration: The RFC destination may be incorrectly configured, such as wrong connection parameters (e.g., wrong hostname, port, or system ID).
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the target system.
  Target System Down: The target SAP system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls or security settings may be blocking the connection to the target system.
  SAP Gateway Issues: The SAP Gateway service may not be running