How To Fix WG406 - Error calling user exit &1 in FM: &2

WG406 - Overview

• Message type: E = Error

• Message class: WG - Messages for store order and investment buy

• Message number: 406

• Message text: Error calling user exit &1 in FM: &2

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 WG406 - Error calling user exit &1 in FM: &2 ?

  Certainly! Here's a detailed explanation of the SAP error message:
  
  SAP Error Message:
  WG406 - Error calling user exit &1 in FM: &2
  
  Meaning / 
  Cause:
  
  This error occurs when the system tries to call a user exit function module (FM) during processing (often in the context of SAP Workflow or other enhancement points), but the call fails.
  The placeholders &1 and &2 represent:
  &1: The name of the user exit (function module) that was called.
  &2: The actual function module name where the error occurred.
  
  
  The cause can be:
  The user exit FM does not exist or is not active.
  The FM has a runtime error or exception.
  Incorrect parameters passed to the FM.
  Authorization or system issues preventing the FM from executing.
  The FM is not properly implemented or registered in the system.
  
  
  
  
  Where does it occur?
  
  Typically during workflow processing or when SAP calls user exits/enhancements in standard function modules.
  Common in scenarios where custom logic is added via user exits or BAdIs.
  
  
  Solution