How To Fix SRT_WSP174 - No operation exists with name (&1:&2)

SAP Error Message - Details

• Message type: E = Error

• Message class: SRT_WSP - Messages for SRT WSP

• Message number: 174

• Message text: No operation exists with name (&1:&2)

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_WSP174 - No operation exists with name (&1:&2) ?

  The SAP error message SRT_WSP174 indicates that there is no operation defined in the Web Service Provider (WSP) with the specified name. This error typically occurs when a web service is called, but the operation being requested does not exist in the service definition.
  Cause:
  
  Incorrect Operation Name: The operation name specified in the request does not match any of the operations defined in the WSDL (Web Services Description Language) file.
  WSDL Changes: The WSDL might have been updated or changed, and the operation name has been modified or removed.
  Service Configuration Issues: There may be issues with the configuration of the web service in the SAP system, such as incorrect bindings or endpoint definitions.
  Namespace Mismatch: The namespace used in the request might not match the namespace defined in the WSDL.
  
  Solution:
  
  Verify Operation Name: Check the operation name in the request and ensure it matches exactly with the operation names defined in the WSDL.
  Check WSDL: Review the WSDL file to confirm that the operation exists and is correctly defined. You can access the WSDL through the service URL or by using tools like SOAP UI.
  Update Service Configuration: If there have been changes to the WSDL, update the service configuration in SAP to reflect these changes. This may involve re-importing the WSDL or updating the service definition.
  Namespace Verification: Ensure that the namespace in the request matches the namespace defined in the WSDL. If there is a mismatch, correct it in the request.
  Testing with Tools: Use tools like SOAP UI or Postman to test the web service with the correct operation name and parameters to ensure that the service is functioning as expected.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SOAMANAGER to manage web services in SAP.
  Logs and Traces: Check the application logs (transaction SLG1) and the trace files (transaction ST01) for more detailed error messages that can provide additional context.
  SAP Notes: Look for relevant SAP Notes that might address specific issues related to web services and this error message.
  Documentation: Refer to SAP documentation on web services for best practices and troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement the necessary solutions to resolve it.