How To Fix WS_TOOL420 - Log...

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 420

• Message text: Log...

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WS_TOOL420 - Log... ?

  The SAP error message WS_TOOL420 Log... typically relates to issues encountered in the SAP Web Service Tool (WS_TOOL) or during web service processing in SAP systems.
  
  Cause
  
  WS_TOOL420 is an informational or error message generated by the SAP Web Service Tool or related components.
  It often indicates a problem during the processing or logging of web service calls.
  Common causes include:
  
  Incorrect or incomplete configuration of web services.
  Communication errors between SAP and external web service endpoints.
  Authorization or permission issues for the user or service.
  Network or connectivity problems.
  Issues in the SOAP message format or payload.
  Problems in the logging mechanism or insufficient log storage.
  
  
  
  
  Solution
  
  
  Check the Detailed Log:
  
  Use transaction SLG1 (Application Log) to view detailed logs related to WS_TOOL420.
  Look for specific error details or stack traces that can pinpoint the root cause.
  
  
  
  Verify Web Service Configuration:
  
  Check the configuration in SOAMANAGER (Web Service Configuration tool).
  Ensure the endpoint URLs, authentication methods, and bindings are correctly set.
  
  
  
  Test Connectivity:
  
  Use tools like ping, telnet, or SAP’s own connectivity tests to verify network access to the web service endpoint.
  
  
  
  Check Authorizations:
  
  Verify that the user or service account has the necessary authorizations to execute the web service.
  
  
  
  Review SOAP Messages:
  
  Use transaction SOAPUI or external tools to validate the SOAP request and response messages.
  Check for any malformed XML or missing required fields.
  
  
  
  Increase Log Storage or Clean Logs:
  
  If the issue is related to logging capacity, increase the log size or archive old logs.
  
  
  
  Apply SAP Notes:
  
  Search the SAP Support Portal for notes related to WS_TOOL420.
  Apply any relevant patches or corrections.
  
  
  
  
  Related Information
  
  
  Transactions:
  
  SOAMANAGER – Web Service Configuration
  SLG1 – Application Log Viewer
  SICF – Internet Communication Framework (check service activation)
  SE80 or SE37 – For function module or service interface debugging
  
  
  
  SAP Notes:
  
  Check SAP Notes for specific WS_TOOL420 issues, e.g., authorization problems or known bugs.
  Example search terms: "WS_TOOL420", "Web Service Tool error", "SOAP web service error"
  
  
  
  Documentation:
  
  SAP Help Portal on Web Services and SOA
  SAP Community forums for similar error discussions
  
  
  
  
  If you provide the full error text or context (e.g., when it occurs, full log entries), I can help narrow down the cause and solution further.