How To Fix SCLNT_HTTP417 - Unknown host name (ICM_HTTP_HOST_UNKNOWN)

SCLNT_HTTP417 - Overview

• Message type: E = Error

• Message class: SCLNT_HTTP - Messages for HTTP Client for Respective Error Code

• Message number: 417

• Message text: Unknown host name (ICM_HTTP_HOST_UNKNOWN)

What causes this issue?

The host name is unknown.

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?

Make sure that the specified server is visible and reachable. One
possible cause of the error is that the specified server can only be
reached through a proxy. In this case, set up the connection through a
proxy.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

SCLNT_HTTP417 - Details

• The SAP error message SCLNT_HTTP417 with the description "Unknown host name (ICM_HTTP_HOST_UNKNOWN)" typically indicates that the SAP system is unable to resolve the hostname specified in the HTTP request. This can occur for various reasons, including DNS issues, incorrect configuration, or network problems.
  Causes:
  
  Incorrect Hostname: The hostname specified in the URL may be incorrect or misspelled.
  DNS Resolution Issues: The DNS server may not be able to resolve the hostname to an IP address.
  Network Configuration: There may be network issues preventing the SAP system from reaching the DNS server or the specified host.
  SAP Configuration: The SAP system may not be properly configured to handle the request for the specified hostname.
  Firewall or Security Settings: Firewalls or security settings may be blocking access to the specified hostname.
  
  Solutions:
  
  Check Hostname: Verify that the hostname in the URL is correct. Ensure there are no typos or incorrect entries.
  DNS Configuration:
  Check the DNS settings on the server where the