How To Fix WA674 - Receiver type determination func. mod. &: Parameter & is not optional

WA674 - Overview

• Message type: E = Error

• Message class: WA - Messages from Workflow Event Manager

• Message number: 674

• Message text: Receiver type determination func. mod. &: Parameter & is not optional

What causes this issue?

The specified parameter of the specified function module for
determining the receiver type is not optional. Since it is not filled
when SWE_EVENT_CREATE is called, this is not allowed.

System Response

The action was terminated, the event was not triggered.

How to fix this error?

Define the specified parameter as optional and assign it a standard
value.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WA674 - Receiver type determination func. mod. &: Parameter & is not optional ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WA674 Receiver type determination func. mod. &: Parameter & is not optional
  
  Meaning / 
  Cause:
  This error occurs during the processing of a workflow or message determination where a function module is used to determine the receiver type. The function module expects certain parameters to be passed, but one or more parameters that are mandatory (not optional) are missing or not provided.
  Specifically, the message indicates that in the function module used for receiver type determination, a parameter (denoted by &) which is mandatory has not been supplied. This leads to the error because the function module cannot execute properly without all required parameters.
  
  When does it occur?
  
  During workflow processing when the system tries to determine the receiver type dynamically.
  When a custom or standard function module is assigned for receiver determination but is incorrectly implemented or called.
  When the function module interface has changed