How To Fix SECATT_HTTP_STATUS417 - Expectation Failed

SAP Error Message - Details

• Message type: E = Error

• Message class: SECATT_HTTP_STATUS - eCATT HTTP Status Messages

• Message number: 417

• Message text: Expectation Failed

What causes this issue?

The expectation given in an Expect request-header field (see section
14.20) could not be met by this server, or, if the server is a proxy,
the server has unambiguous evidence that the request could not be met by
the next-hop server.

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_STATUS417 - Expectation Failed ?

  The SAP error message "SECATT_HTTP_STATUS417 Expectation Failed" typically occurs when there is an issue with the HTTP request being sent from the SAP system to a web service or an external system. The HTTP status code 417 indicates that the server cannot meet the requirements of the Expect request-header field.
  Cause:
  
  Expect Header: The client (SAP system) is sending an "Expect: 100-continue" header in the HTTP request, which indicates that the client expects the server to respond with a 100 (Continue) status before sending the request body. If the server does not support this expectation, it will respond with a 417 status code.
  Server Configuration: The server you are trying to communicate with may not be configured to handle the "Expect" header properly.
  Network Issues: There could be network-related issues that prevent the request from being processed correctly.
  Proxy Issues: If there is a proxy server involved, it may not be handling the Expect header correctly.
  
  Solution:
  
  Remove the Expect Header: If possible, configure the SAP system to not send the "Expect: 100-continue" header. This can often be done in the HTTP client settings or by modifying the code that constructs the HTTP request.
  Server Configuration: If you have control over the server, ensure that it is configured to handle the "Expect" header correctly. This may involve updating server settings or software.
  Check Network Configuration: Ensure that there are no network issues or misconfigurations that could be causing the problem.
  Proxy Configuration: If a proxy is being used, check its configuration to ensure it can handle the Expect header properly. You may need to bypass the proxy for this request if it cannot be configured correctly.
  Update SAP: Ensure that your SAP system is up to date with the latest patches and updates, as there may be fixes related to HTTP communication.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. You can search the SAP Support Portal for relevant notes.
  HTTP Client Settings: Review the HTTP client settings in your SAP system, particularly those related to the handling of HTTP headers.
  Logs and Traces: Enable logging or tracing for the HTTP requests to gather more information about the request and response, which can help in diagnosing the issue.
  Documentation: Refer to the official SAP documentation for the specific module or functionality you are using, as it may provide additional insights into handling HTTP requests.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.