How To Fix W3_TOOL122 - Local processing by front end not supported !

SAP Error Message - Details

• Message type: E = Error

• Message class: W3_TOOL - ITS: Maintenance Messages

• Message number: 122

• Message text: Local processing by front end not supported !

Self-Explanatory Message

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• What is the cause and solution for SAP error message W3_TOOL122 - Local processing by front end not supported ! ?

  SAP Error Message:
  
  W3_TOOL122 Local processing by front end not supported !
  
  Cause
  This error occurs when a Web Dynpro application or a Web Dynpro ABAP component tries to execute a process or action that requires server-side processing, but the system or environment attempts to handle it locally on the front end (client side). Essentially, the front end (e.g., SAP GUI or browser) is trying to process something that must be processed on the SAP server.
  Common scenarios include:
  
  Running Web Dynpro applications in a mode or environment that does not support local processing.
  Misconfiguration of the Web Dynpro runtime environment.
  Trying to execute certain Web Dynpro tools or transactions that require server-side execution but are invoked in a way that triggers local processing.
  Using SAP GUI for Windows or other front-end tools that do not support the required processing mode.
  
  
  Explanation
  Web Dynpro applications are designed to run on the SAP NetWeaver Application Server (AS) and rely on server-side processing. Some tools or transactions related to Web Dynpro development or runtime require the server to handle the processing. If the system or user tries to run these tools locally (e.g., from the front end without proper server context), the system raises this error.
  
  Solution
  
  
  Run the application or tool on the server side:
  
  Ensure that the Web Dynpro application or tool is executed in the SAP NetWeaver Application Server environment.
  Use the SAP GUI or Web Dynpro runtime environment properly connected to the server.
  
  
  
  Check the environment and configuration:
  
  Verify that the Web Dynpro runtime environment is correctly configured on the server.
  Make sure the SAP GUI or browser is properly connected to the SAP server.
  Avoid running Web Dynpro tools or transactions in local mode or offline mode.
  
  
  
  Use the correct transaction or tool:
  
  For development or testing, use transactions like SE80, SE24, or Web Dynpro specific transactions (WDR_TEST_TOOL, WDR_BROWSER) that run on the server.
  Avoid using tools or shortcuts that attempt to run Web Dynpro components locally.
  
  
  
  Check SAP Notes and documentation:
  
  Sometimes, specific SAP Notes address this error for particular versions or patches.
  Search SAP Support Portal for W3_TOOL122 or related Web Dynpro errors.
  
  
  
  
  Related Information
  
  Web Dynpro Architecture: Web Dynpro applications are server-centric; the UI runs in the browser or SAP GUI, but the logic executes on the server.
  Transactions:
  
  WDR_TEST_TOOL — Web Dynpro test tool (server-side).
  SE80 — Object Navigator for development.
  
  
  SAP Notes: Check for notes related to Web Dynpro runtime errors or front-end processing issues.
  SAP Help Portal: Documentation on Web Dynpro ABAP architecture and runtime environment.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Attempt to process Web Dynpro logic locally on front end instead of server-side.
  
  
  Solution
  Run the application/tool on the SAP server; ensure proper configuration and connection.
  
  
  Related
  Web Dynpro runtime environment, SAP GUI connection, SAP Notes on Web Dynpro errors.
  
  
  
  
  If you provide the exact context or transaction where this error occurs, I can help with more specific guidance.