How To Fix WD471 - Not possible to reassign line for event '&'

WD471 - Overview

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 471

• Message text: Not possible to reassign line for event '&'

What causes this issue?

A subsequent event cannot be determined for the event identified.
A successor can only be determined if the identified event has an
operator of type 'XOR' as subsequent node and this operator belongs to
a parent block of the selected node.

System Response

The Workflow Builder does not allow the requested operation on the
selected event.

How to fix this error?

Delete all nodes between the selected event and the next 'XOR'
operator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WD471 - Not possible to reassign line for event '&' ?

  Certainly! Here's a detailed explanation for the SAP error message WD471: "Not possible to reassign line for event '&'":
  
  Error Message
  WD471: Not possible to reassign line for event '&'
  
  Cause
  This error typically occurs in the Web Dynpro ABAP environment during event handling. It indicates that the framework is unable to reassign or rebind a UI element (line) to a different event handler or context node line.
  Common causes include:
  
  Attempting to reassign a UI element (like a table row or list item) to a different context node line when the element is already bound or locked.
  Trying to change the binding of a UI element after the event processing has started or after the UI element has been rendered.
  Incorrect usage of context node lines or improper handling of context node references in the event handler.
  The event handler code tries to reassign a line that is not allowed to be reassigned due to the current state