How To Fix SRT_WSP632 - Could not merge HTTP and message authentication

SAP Error Message - Details

• Message type: E = Error

• Message class: SRT_WSP - Messages for SRT WSP

• Message number: 632

• Message text: Could not merge HTTP and message authentication

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SRT_WSP632 - Could not merge HTTP and message authentication ?

  The SAP error message SRT_WSP632 indicates that there is an issue with the authentication process when trying to merge HTTP and message authentication in a web service scenario. This error typically arises in the context of SAP's web service runtime environment, particularly when dealing with secure communication protocols.
  Cause:
  The error can be caused by several factors, including:
  
  
  Configuration Issues: Incorrect configuration of the web service or the security settings in the SAP system can lead to this error. This includes issues with the service endpoint, authentication methods, or security policies.
  
  
  Incompatible Authentication Methods: If the HTTP authentication method (like Basic Auth, Digest Auth, etc.) does not match the message-level security settings (like WS-Security), it can lead to this error.
  
  
  Missing or Incorrect Security Certificates: If the web service requires SSL/TLS and the necessary certificates are not correctly installed or configured, it can cause authentication failures.
  
  
  Network Issues: Problems with the network or firewall settings that prevent proper communication between the client and the server can also lead to this error.
  
  
  Solution:
  To resolve the SRT_WSP632 error, you can take the following steps:
  
  
  Check Configuration:
  
  Review the web service configuration in the SAP system. Ensure that the endpoint URL, authentication methods, and security settings are correctly set up.
  Verify that the authentication methods used for HTTP and message-level security are compatible.
  
  
  
  Review Security Settings:
  
  Ensure that the security settings for the web service are correctly configured. This includes checking the WS-Security settings and ensuring they align with the HTTP authentication methods.
  
  
  
  Validate Certificates:
  
  If SSL/TLS is being used, check that the necessary security certificates are installed and valid. Ensure that the certificate chain is complete and trusted by the SAP system.
  
  
  
  Test Connectivity:
  
  Use tools like Postman or SOAP UI to test the web service endpoint directly. This can help identify if the issue is with the SAP configuration or the web service itself.
  
  
  
  Check Logs:
  
  Review the SAP application logs (transaction SLG1) and the web service runtime logs for more detailed error messages that can provide additional context on the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to web service security and authentication for any specific configurations or known issues.
  
  
  
  Update SAP System:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as there may be fixes related to web service authentication in newer versions.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the SRT_WSP632 error.
  Web Service Configuration: Familiarize yourself with the configuration of web services in SAP, including the use of SOAMANAGER for managing web service settings.
  Security Protocols: Understand the different security protocols supported by SAP for web services, including WS-Security and various HTTP authentication methods.
  
  By following these steps, you should be able to diagnose and resolve the SRT_WSP632 error effectively. If the issue persists, consider reaching out to SAP support for further assistance.