How To Fix WS_TOOL421 - Internal error: Function is no longer supported!

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 421

• Message text: Internal error: Function is no longer supported!

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS_TOOL421 - Internal error: Function is no longer supported! ?

  The SAP error message:
  WS_TOOL421 Internal error: Function is no longer supported!
  
  Cause:
  This error typically occurs when a user or a program tries to execute a function or use a feature that has been deprecated or removed in the current SAP system version or patch level. The message indicates that the underlying function module, method, or tool that was previously available is no longer supported by SAP.
  Common scenarios include:
  
  Using outdated or obsolete function modules or APIs.
  Running custom code or third-party add-ons that rely on deprecated SAP functions.
  Upgrading the SAP system to a newer version where certain functions have been removed.
  Using old transaction codes or tools that internally call unsupported functions.
  
  
  Solution:
  
  
  Identify the Deprecated Function:
  
  Check the exact function or tool that triggers the error.
  Review the program or transaction code where the error occurs.
  Use debugging or system logs (ST22 short dumps, SM21 system log) to get more details.
  
  
  
  Check SAP Notes and Documentation:
  
  Search the SAP Support