How To Fix SRT_WSP645 - Invalid proxy class name "&1" for consumer interface "&2{&3}"

SAP Error Message - Details

• Message type: E = Error

• Message class: SRT_WSP - Messages for SRT WSP

• Message number: 645

• Message text: Invalid proxy class name "&1" for consumer interface "&2{&3}"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SRT_WSP645 - Invalid proxy class name "&1" for consumer interface "&2{&3}" ?

  The SAP error message SRT_WSP645 indicates that there is an issue with the proxy class name for a consumer interface in the SAP system. This error typically arises in the context of SAP Process Integration (PI) or SAP Process Orchestration (PO) when dealing with web services.
  Cause:
  The error message can be caused by several factors, including:
  
  Incorrect Proxy Class Name: The proxy class name specified in the configuration does not match any existing proxy class in the system.
  Missing or Incomplete Configuration: The consumer interface may not be properly configured, leading to the system being unable to locate the correct proxy class.
  Transport Issues: If the proxy classes were recently transported from another system, there may have been issues during the transport process that resulted in missing or incomplete classes.
  Namespace Issues: The namespace of the proxy class may not be correctly defined or may not match the expected namespace for the consumer interface.
  Version Mismatch: There may be a version mismatch between the service definition and the generated proxy classes.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Proxy Class Name: Verify that the proxy class name specified in the error message is correct. You can do this by checking the relevant service definition in the SAP system.
  
  
  Regenerate Proxy Classes: If the proxy class is missing or incorrect, regenerate the proxy classes using the Service Builder (transaction code SE80) or the relevant tools in your SAP system.
  
  
  Review Configuration: Ensure that the consumer interface is correctly configured in the Integration Directory (transaction code PI_DIR) or the relevant configuration area for your SAP version.
  
  
  Check Transport Logs: If the proxy classes were transported, check the transport logs for any errors or warnings that may indicate issues during the transport process.
  
  
  Namespace Verification: Ensure that the namespace for the proxy class matches the expected namespace for the consumer interface. This can be checked in the service definition.
  
  
  Test the Service: After making the necessary changes, test the service again to see if the error persists.
  
  
  Consult Documentation: If the issue continues, refer to SAP documentation or support notes related to the specific version of SAP you are using for additional troubleshooting steps.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE80 (Object Navigator), PI_DIR (Integration Directory), and SICF (HTTP Service Hierarchy Maintenance) for web service configurations.
  SAP Notes: Search for SAP Notes related to SRT_WSP645 for any specific patches or updates that may address known issues.
  Community Forums: Consider checking SAP Community forums or other online resources for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify and resolve the cause of the SRT_WSP645 error in your SAP system.