How To Fix SPRX042 - Proxy generation terminated: WSDL error (interface without methods)

SAP Error Message - Details

• Message type: E = Error

• Message class: SPRX - Proxy Generation

• Message number: 042

• Message text: Proxy generation terminated: WSDL error (interface without methods)

INCLUDE SPRX_GET_WSDL OBJECT DOKU ID TX

What causes this issue?

In the WSDL document, the tag <operation> under <portType> is missing.
In a correct WSDL this must exist (if the <operation> tag is missing
then the interface has no methods).

System Response

Proxy generation is terminated.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SPRX042 - Proxy generation terminated: WSDL error (interface without methods) ?

  The SAP error message SPRX042 indicates that there is an issue with the Web Service Definition Language (WSDL) file generated for a proxy object. Specifically, the error message "interface without methods" suggests that the interface defined in the WSDL does not contain any methods, which is a requirement for a valid proxy interface.
  Causes:
  
  Empty Interface: The most common cause is that the interface you are trying to expose as a web service does not have any methods defined. This can happen if the interface was created but no methods were added to it.
  Incorrect Configuration: There may be a misconfiguration in the service definition or the proxy generation settings.
  Missing Implementation: If the interface is supposed to have methods but they are not implemented or not properly defined, this can lead to the error.
  Transport Issues: Sometimes, issues with the transport layer or the way the service is being called can lead to this error.
  
  Solutions:
  
  
  Check Interface Definition:
  
  Go to the transaction code SE80 (Object Navigator) or SE37 (Function Module) and check the interface definition.
  Ensure that the interface has at least one method defined. If it does not, you will need to add methods to the interface.
  
  
  
  Implement Methods:
  
  If the interface is supposed to have methods, ensure that they are correctly implemented. You may need to create or modify the methods to ensure they are available for the proxy.
  
  
  
  Regenerate Proxy:
  
  After making changes to the interface, regenerate the proxy. You can do this by using transaction SPROXY and selecting the appropriate options to regenerate the proxy.
  
  
  
  Check WSDL Generation:
  
  Ensure that the WSDL is being generated correctly. You can check the WSDL by accessing the service URL directly in a web browser or using a tool like SoapUI.
  
  
  
  Review Service Configuration:
  
  Check the service configuration in transaction SOAMANAGER. Ensure that the service is correctly configured and that the interface is properly linked to the service.
  
  
  
  Transport Layer:
  
  If the issue persists, check for any transport issues that might be affecting the service. Ensure that all necessary components are correctly transported and activated in the target system.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SE80: Object Navigator
  SE37: Function Module
  SPROXY: Proxy Generation
  SOAMANAGER: Service Administration
  
  
  
  Documentation: Refer to SAP Help documentation for more details on web services and proxy generation.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to proxy generation and WSDL errors.
  
  
  By following these steps, you should be able to resolve the SPRX042 error and successfully generate the proxy for your web service.