How To Fix SRT_WSP801 - Unexpected message received

SAP Error Message - Details

• Message type: E = Error

• Message class: SRT_WSP - Messages for SRT WSP

• Message number: 801

• Message text: Unexpected message received

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SRT_WSP801 - Unexpected message received ?

  The SAP error message SRT_WSP801: Unexpected message received typically occurs in the context of SAP Process Integration (PI) or SAP Process Orchestration (PO) when there is an issue with the communication between systems, particularly when dealing with web services. This error indicates that the system received a message that it did not expect, which can be due to various reasons.
  Causes:
  
  Message Format Issues: The message received does not conform to the expected format or structure. This can happen if the sender and receiver are not aligned on the message schema.
  Version Mismatch: There may be a mismatch in the versions of the web service being used. If the sender is using a different version than what the receiver expects, it can lead to this error.
  Incorrect Endpoint Configuration: The endpoint URL or service configuration might be incorrect, leading to the wrong service being called.
  Faulty WSDL: If the WSDL (Web Services Description Language) file is not correctly defined or has been modified, it can lead to unexpected messages.
  Network Issues: Network problems can cause incomplete or corrupted messages to be sent or received.
  Security Settings: If there are security settings (like WS-Security) that are not properly configured, it can lead to issues in message processing.
  
  Solutions:
  
  Check Message Format: Ensure that the message being sent conforms to the expected format. Validate the XML structure against the XSD (XML Schema Definition) if applicable.
  Verify WSDL and Service Versions: Make sure that both the sender and receiver are using the same version of the web service and that the WSDL is correctly defined.
  Review Endpoint Configuration: Double-check the endpoint URL and service configuration in both the sender and receiver systems to ensure they are correct.
  Test with SOAP UI or Postman: Use tools like SOAP UI or Postman to manually send requests to the web service and see if you can replicate the issue. This can help isolate whether the problem is with the sender or the receiver.
  Check Logs: Review the logs in both the sender and receiver systems for any additional error messages or warnings that could provide more context about the issue.
  Network Diagnostics: Perform network diagnostics to ensure that there are no connectivity issues between the systems.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  SAP PI/PO Documentation: Refer to the official SAP documentation for Process Integration and Process Orchestration for detailed information on web service configurations.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it is impacting production systems.
  
  By following these steps, you should be able to diagnose and resolve the SRT_WSP801 error effectively.