How To Fix SECATT_HTTP_STATUS407 - Proxy Authentication Required

SAP Error Message - Details

• Message type: E = Error

• Message class: SECATT_HTTP_STATUS - eCATT HTTP Status Messages

• Message number: 407

• Message text: Proxy Authentication Required

What causes this issue?

This code is similar to 401 (Unauthorized), but indicates that the
client must first authenticate itself with the proxy. The proxy MUST
return a Proxy-Authenticate header field (section 14.33) containing a
challenge applicable to the proxy for the requested resource. The client
MAY repeat the request with a suitable Proxy-Authorization header field
(section 14.34). HTTP access authentication is explained in "HTTP
Authentication: Basic and Digest Access Authentication".

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SECATT_HTTP_STATUS407 - Proxy Authentication Required ?

  The SAP error message "SECATT_HTTP_STATUS407 Proxy Authentication Required" indicates that the system is trying to access a resource through a proxy server that requires authentication, but the necessary credentials have not been provided. This is commonly encountered in scenarios where SAP systems are configured to connect to external services or APIs through a proxy.
  Cause:
  
  Proxy Configuration: The SAP system is configured to use a proxy server for outbound HTTP requests, but the proxy requires authentication.
  Missing Credentials: The credentials (username and password) for the proxy server are not set up in the SAP system.
  Incorrect Proxy Settings: The proxy settings in the SAP system may be incorrect or incomplete.
  
  Solution:
  To resolve the "SECATT_HTTP_STATUS407 Proxy Authentication Required" error, follow these steps:
  
  
  Check Proxy Settings:
  
  Go to transaction SM59 (RFC Destinations).
  Check the settings for the HTTP connection or the relevant RFC destination that is being used.
  Ensure that the proxy settings (host, port) are correctly configured.
  
  
  
  Set Proxy Authentication:
  
  In the same SM59 transaction, look for the option to enter proxy authentication details.
  You may need to specify the username and password for the proxy server. This can usually be done in the "Logon & Security" tab of the RFC destination configuration.
  
  
  
  Use Secure Connection:
  
  If the proxy requires a secure connection (HTTPS), ensure that the connection type is set to HTTPS and that the necessary SSL certificates are installed and configured.
  
  
  
  Test Connection:
  
  After making changes, use the "Connection Test" feature in SM59 to verify that the connection to the proxy server is successful.
  
  
  
  Check Network Configuration:
  
  Ensure that there are no firewall rules or network configurations that might be blocking the connection to the proxy server.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or your organization's network team for specific details on the proxy server configuration and authentication requirements.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  System Logs: Review system logs (transaction SLG1) for more detailed error messages that might provide additional context.
  Proxy Server Documentation: Consult the documentation for the proxy server being used to understand its authentication requirements and configuration options.
  
  By following these steps, you should be able to resolve the "SECATT_HTTP_STATUS407 Proxy Authentication Required" error and successfully connect to the desired external resource.