How To Fix SWF_HTTP102 - Reference '&1' in WSDL element <&2> is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_HTTP - Web Services in the Workflow: Server Functions

• Message number: 102

• Message text: Reference '&1' in WSDL element <&2> is invalid

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_HTTP102 - Reference '&1' in WSDL element <&2> is invalid ?

  The SAP error message SWF_HTTP102 indicates that there is an issue with a reference in a WSDL (Web Services Description Language) document. Specifically, the message states that the reference '&1' in the WSDL element <&2> is invalid. This typically occurs when the WSDL is not correctly configured or when there are issues with the service definitions.
  Causes:
  
  Invalid Reference: The reference specified in the WSDL does not point to a valid service, operation, or type. This could be due to a typo or an incorrect namespace.
  WSDL Structure Issues: The WSDL may not be well-formed or may have structural issues that prevent it from being parsed correctly.
  Namespace Mismatch: The namespaces defined in the WSDL may not match the expected namespaces for the referenced elements.
  Service Not Deployed: The service that the WSDL is trying to reference may not be deployed or may not be available in the system.
  Version Mismatch: There may be a version mismatch between the WSDL and the actual service implementation.
  
  Solutions:
  
  Check the WSDL: Review the WSDL file for any typos or incorrect references. Ensure that all elements are correctly defined and that the references are valid.
  Validate the WSDL: Use a WSDL validation tool to check for structural issues or errors in the WSDL document.
  Check Namespaces: Ensure that the namespaces used in the WSDL match those expected by the service. Correct any discrepancies.
  Service Deployment: Verify that the service being referenced is correctly deployed and accessible. Check the service endpoint and ensure it is running.
  Update References: If the service has been updated or changed, ensure that the WSDL is updated to reflect these changes.
  Consult Documentation: Refer to SAP documentation or community forums for any specific guidance related to the version of SAP you are using.
  
  Related Information:
  
  WSDL Structure: Understanding the structure of WSDL files can help in identifying issues. A WSDL typically includes definitions for types, messages, port types, bindings, and services.
  SAP Web Services: Familiarize yourself with how SAP handles web services, including the use of SOA (Service-Oriented Architecture) and the tools available for managing web services in SAP.
  Error Logs: Check SAP application logs (transaction SLG1) for more detailed error messages that may provide additional context for the issue.
  
  By following these steps, you should be able to identify and resolve the SWF_HTTP102 error in your SAP environment.