How To Fix WSS256 - Errors occurred when creating configuration Secure Conversaton endpoints

SAP Error Message - Details

• Message type: E = Error

• Message class: WSS - Web Services Security

• Message number: 256

• Message text: Errors occurred when creating configuration Secure Conversaton endpoints

Self-Explanatory Message

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• What is the cause and solution for SAP error message WSS256 - Errors occurred when creating configuration Secure Conversaton endpoints ?

  SAP Error Message:
  
  WSS256 - Errors occurred when creating configuration Secure Conversation endpoints
  
  Cause:
  This error typically occurs during the configuration or activation of Secure Conversation endpoints in SAP Web Services Security (WS-Security) scenarios. The root causes can include:
  
  Incorrect or incomplete configuration of Secure Conversation settings in the SAP system.
  Missing or invalid certificates required for establishing secure communication.
  Incompatible or missing security policies in the Web Service configuration.
  Issues with the Secure Store or Key Storage where certificates/keys are kept.
  Transport layer problems such as SSL/TLS misconfiguration.
  Authorization or system profile issues that prevent creation or activation of secure endpoints.
  
  
  Solution:
  To resolve the WSS256 error, follow these steps:
  
  
  Check Secure Conversation Configuration:
  
  Verify that Secure Conversation is properly configured in the SAP system.
  Use transaction STRUST to check the certificates and ensure they are valid and not expired.
  Confirm that the correct PSE (Personal Security Environment) is used for the service.
  
  
  
  Review Security Policies:
  
  In transaction SOAMANAGER, check the Web Service configuration.
  Ensure that the security policy assigned to the service supports Secure Conversation.
  If necessary, recreate or adjust the security policy to include Secure Conversation.
  
  
  
  Verify Certificates and Keys:
  
  Ensure that the certificates used for signing/encryption are correctly imported and trusted.
  Check the certificate chain and validity.
  If certificates are missing or invalid, import or renew them.
  
  
  
  Check System and User Authorizations:
  
  Make sure the user performing the configuration has the necessary authorizations.
  Check roles related to Web Service configuration and security.
  
  
  
  Review System Logs and Traces:
  
  Use transaction SM21 (system log) and ST22 (short dumps) to find more detailed error information.
  Enable trace for Web Services Security if needed to get detailed logs.
  
  
  
  Transport Layer Security:
  
  Verify SSL/TLS settings if Secure Conversation uses HTTPS.
  Check for any SSL handshake errors or protocol mismatches.
  
  
  
  Restart Services:
  
  Sometimes, restarting the ICM or the SAP system can help apply the new configuration.
  
  
  
  
  Related Information:
  
  
  SAP Notes:
  
  Check SAP Notes related to WS-Security and Secure Conversation errors.
  For example, SAP Note 1789270 and others related to WS-Security configuration issues.
  
  
  
  Transactions:
  
  STRUST – Manage certificates and PSEs.
  SOAMANAGER – Configure Web Services and security policies.
  SMICM – Monitor and manage ICM (Internet Communication Manager).
  SM21, ST22 – Logs and dumps for troubleshooting.
  
  
  
  Documentation:
  
  SAP Help Portal: Web Services Security and Secure Conversation configuration guides.
  SAP Community forums for similar issues and solutions.
  
  
  
  
  Summary:
  The WSS256 error indicates problems in creating Secure Conversation endpoints due to configuration, certificate, or policy issues. Careful review and correction of security policies, certificates, and system settings usually resolve the problem. Always ensure that the security environment is consistent and that all required certificates and authorizations are in place.