How To Fix WS_TOOL406 - Web service: &

SAP Error Message - Details

• Message type: E = Error

• Message class: WS_TOOL - Message Class for Web Services and Virtual Endpoints

• Message number: 406

• Message text: Web service: &

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 WS_TOOL406 - Web service: & ?

  SAP Error Message:
  
  WS_TOOL406 Web service: &?
  
  Meaning of the Error
  The error message WS_TOOL406 typically appears in the context of SAP Web Services. The message text usually looks like:
  WS_TOOL406 Web service: &?
  Here, the &? is a placeholder for the name or identifier of the web service that caused the error.
  This error indicates that there is a problem related to the web service tool or runtime environment when trying to process or access the specified web service.
  
  Common Causes
  
  
  Web Service Not Found or Incorrect Name:
  
  The web service name or URL provided is incorrect or does not exist in the system.
  
  
  Authorization Issues:
  
  The user or system trying to access the web service does not have the necessary authorizations.
  
  
  Configuration Issues:
  
  The web service is not properly configured or activated in the SAP system.
  
  
  Runtime Errors:
  
  There might be runtime errors in the web service handler or the underlying ABAP code.
  
  
  Transport or Network Issues:
  
  Network problems or transport layer issues can cause the web service call to fail.
  
  
  Outdated or Inconsistent Web Service Definitions:
  
  The WSDL or service definitions might be outdated or inconsistent with the backend implementation.
  
  
  
  How to Analyze and Solve
  
  
  Check the Web Service Name:
  
  Verify the exact name of the web service causing the error. Make sure it exists and is correctly spelled.
  
  
  Check Service Activation:  
  
  Use transaction SOAMANAGER to check if the web service is active and properly configured.
  Ensure the endpoint is correctly maintained.
  
  
  
  Check Authorizations:  
  
  Verify that the user or system has the required roles and authorizations to access the web service.
  Check authorization objects like S_ICF (for ICF services) and others related to web services.
  
  
  
  Check ICF Services:  
  
  Use transaction SICF to check if the relevant ICF node for the web service is active.
  Activate the service if it is inactive.
  
  
  
  Check Logs and Traces:  
  
  Use transaction SLG1 (Application Log) to check for detailed error logs related to the web service.
  Use transaction ST22 to check for any short dumps related to the web service call.
  Use transaction SMICM to check for HTTP errors or issues.
  
  
  
  Check WSDL and Service Definitions:  
  
  Regenerate or re-import the WSDL if necessary.
  Ensure the service interface and implementation are consistent.
  
  
  
  Test the Web Service:  
  
  Use tools like SOAP UI or the SAP Web Service Navigator to test the web service endpoint.
  Check if the service responds correctly.
  
  
  
  Check Network and Connectivity:  
  
  Verify network connectivity between the client and SAP server.
  Check firewall or proxy settings that might block the web service call.
  
  
  
  
  Related Information
  
  Transaction SOAMANAGER: Central tool for managing web services in SAP.
  Transaction SICF: Manage Internet Communication Framework services.
  Authorization Objects: S_ICF, S_SERVICE, S_RFC (if RFC is involved).
  SAP Notes: Search SAP Support Portal for notes related to WS_TOOL406 for specific patches or known issues.
  SAP Help Portal: Documentation on Web Services and SOA in SAP.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Web service not found, authorization issues, inactive ICF service, configuration errors.
  
  
  Solution
  Verify service name, activate ICF service, check authorizations, use SOAMANAGER to configure, check logs and traces.
  
  
  Tools
  SOAMANAGER, SICF, SLG1, ST22, SMICM
  
  
  Additional
  Test with external tools, check network connectivity, update WSDL if needed.
  
  
  
  
  If you provide the exact context or the full error message including the web service name, I can help you with more specific troubleshooting steps.