How To Fix WG400 - Invalid input parameter (&1 = &2) calling FM: &3!

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 400

• Message text: Invalid input parameter (&1 = &2) calling FM: &3!

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 WG400 - Invalid input parameter (&1 = &2) calling FM: &3! ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WG400 Invalid input parameter (&1 = &2) calling FM: &3
  
  Meaning / 
  Cause:
  This error occurs when a function module (FM) is called with an invalid or unexpected input parameter. The message indicates that the parameter name (&1) has an invalid value (&2) when calling the function module (&3).
  In other words, the program or user is passing a parameter value that the function module does not accept or recognize, leading to the error.
  
  Common Causes:
  
  Incorrect or missing parameter values in the function module call.
  Data inconsistencies or wrong data types passed to the FM.
  Custom code or user-exits/enhancements passing invalid parameters.
  Incorrect configuration or master data leading to invalid parameter values.
  Programming errors where the parameter is not properly initialized or populated.
  
  
  Typical Scenario:
  This message is often seen in SAP Workflow (WG* messages are related to Workflow) when a workflow container or step calls a function module