How To Fix WPS01006 - &1 &2 &3 references itself as subordinate task list

WPS01006 - Overview

• Message type: E = Error

• Message class: WPS01 - Revision Planning - Task List Hierarchy

• Message number: 006

• Message text: &1 &2 &3 references itself as subordinate task list

Self-Explanatory Message

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• What is the cause and solution for SAP error message WPS01006 - &1 &2 &3 references itself as subordinate task list ?

  Certainly! Here's detailed information about the SAP error message WPS01006 &1 &2 &3 references itself as subordinate task list:
  
  Error Message
  WPS01006 &1 &2 &3 references itself as subordinate task list
  
  Cause
  This error occurs when a task list (often a maintenance task list or production task list) is assigned as a subordinate task list to itself, either directly or indirectly. In other words, the task list is referencing itself in its hierarchy, which creates a circular reference or loop.
  
  &1 = Task list group
  &2 = Task list group counter
  &3 = Task list type
  
  This self-reference is logically incorrect because a task list cannot be a subordinate of itself.
  
  Explanation
  In SAP Plant Maintenance (PM) or Production Planning (PP), task lists can have hierarchical structures where a main task list can have subordinate task lists. The system prevents circular references to avoid infinite loops during processing.
  If a task list is mistakenly assigned as a subordinate to itself, the