How To Fix SCLNT_HTTP426 - Unexpected HTTP status code from HTTP proxy (ICM_HTTP_PROXY_HTTP_ERROR)

SCLNT_HTTP426 - Overview

• Message type: E = Error

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

• Message number: 426

• Message text: Unexpected HTTP status code from HTTP proxy (ICM_HTTP_PROXY_HTTP_ERROR)

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SCLNT_HTTP426 - Unexpected HTTP status code from HTTP proxy (ICM_HTTP_PROXY_HTTP_ERROR) ?

  The SAP error message SCLNT_HTTP426 indicates that there is an unexpected HTTP status code being returned from an HTTP proxy, specifically an HTTP proxy error. The error code ICM_HTTP_PROXY_HTTP_ERROR suggests that the Internet Communication Manager (ICM) in SAP is encountering issues when trying to communicate through the configured HTTP proxy.
  Causes:
  
  Proxy 
  Configuration Issues: The HTTP proxy settings in the SAP system may be incorrect or misconfigured.
  Network Issues: There may be network connectivity problems between the SAP system and the HTTP proxy server.
  Proxy Server Issues: The proxy server itself may be down, misconfigured, or returning an unexpected response.
  Authentication Issues: If the proxy requires authentication, and the credentials are not provided or are incorrect, this can lead to errors.
  Firewall or Security Settings: Firewalls or security settings may be blocking the connection to the proxy server.
  HTTP Status Code: The proxy may be returning a specific HTTP status code (like 403 Forbidden, 404 Not Found,