How To Fix SRT_WSP2008 - Proxy '&1' can not be used for polling. Not all operations are async.

SAP Error Message - Details

• Message type: E = Error

• Message class: SRT_WSP2 - Messages for SRT WSP

• Message number: 008

• Message text: Proxy '&1' can not be used for polling. Not all operations are async.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SRT_WSP2008 - Proxy '&1' can not be used for polling. Not all operations are async. ?

  The SAP error message SRT_WSP2008 indicates that there is an issue with the configuration of a web service proxy in SAP. Specifically, the error states that the proxy cannot be used for polling because not all operations are asynchronous. This typically occurs in scenarios where a web service is expected to support asynchronous communication, but one or more operations are defined as synchronous.
  Cause:
  
  Mixed Operation Types: The web service proxy has operations defined with mixed types (some synchronous and some asynchronous). Polling is only applicable when all operations are asynchronous.
  Configuration Issues: The web service might not be configured correctly in the SAP system, leading to this error.
  Service Definition: The WSDL (Web Services Description Language) file used to generate the proxy might define some operations as synchronous, which conflicts with the expectation of asynchronous processing.
  
  Solution:
  
  
  Check Operation Types:
  
  Review the operations defined in the web service proxy. Ensure that all operations intended for polling are defined as asynchronous.
  If you have control over the web service, modify the WSDL to ensure that all operations are asynchronous.
  
  
  
  Modify Proxy Settings:
  
  If you are using a generated proxy, you may need to regenerate the proxy after ensuring that the web service definition is correct.
  In the SAP system, navigate to the relevant transaction (e.g., SOAMANAGER) to check the configuration of the web service and its operations.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to web service proxies and asynchronous communication to ensure that you are following best practices.
  
  
  
  Testing:
  
  After making changes, test the web service again to ensure that the error is resolved and that the proxy can be used for polling.
  
  
  
  Related Information:
  
  Asynchronous vs. Synchronous Operations: Understand the difference between synchronous and asynchronous operations in web services. Synchronous operations wait for a response before proceeding, while asynchronous operations allow the client to continue processing without waiting for a response.
  SAP Web Services: Familiarize yourself with SAP's web service architecture, including how to configure and manage web services using tools like SOAMANAGER.
  Error Logs: Check the SAP application logs (transaction SLG1) for additional details related to the error, which may provide more context or specific issues with the web service configuration.
  
  By addressing the operation types and ensuring that the web service is correctly configured, you should be able to resolve the SRT_WSP2008 error.